Firstly well done Proton thanks for acknowledging our feedbacks and taken on board all our comments feels like we are talking to other humans unlike some of the other providers.

1) ProtonDrive/Vault - Purpose to store data of all types and file extensions.
2) Benefits - Would allow customers to save documents/ data to our existing email boxes utilising unused storage data space in our existing packages.
3) Location of service- Ideally button located on side bar next to our email access for easy use of attachments etc. Possibility of drag and drop function that would upload to our drive.
4) Additional benefits -Nice to haves - encrypted data storage box that can be for sharing access to a more then one file accessed file portal link anywhere in world. Rather then having to attach files and hitting attachment quota limit on existing email. This would allow customers to send confidential data on a temporary link accessible by pwd much like how customers read email outside of protonmail currently, although this would be for the sharing element.
- Backup methods / to easily update and sync data /transfer locally with encryption rings attached.
5) Security methods - highest forms of encryption possible to ensure confidence with customer data. / Possibly even a service built in within the service such as stegnography(this would be truly a unique service and properly crush your competitors)

My Ideas input for names for this service would be as follows

ProtonVault
ProtonDrive
ProtonCrypt
ProtonKnox
ProtonLocker

Many Thanks peace to all and God bless may everybody be happy in this life.
Kindest regards
Si

Photo hosting would be si great ...

My personal opinion is keep all your private information off any cloud service because its yours and should not be given to anyone else.

+1 for the cloud! come on proton!

Proton-DESK is what we need to have as next priority: all our critical information, searchable, editable and organized. Having a secure drive is nice but what is more important is to have it all integrated. I think a Proton DESK is a better methaphor.

This would encompass all our critical information, files (Word/ Excel/ other) editable and searchable. In "Other" would be passwords, like Lastpass - it would NOT be necessary to incorporate automatic logons if that entails security risks - good old copy and paste would be fine.
Think about it, right now I have to keep ProtonMail login info on an encrypted file (and paper note) - keeping it with Lastpass would be self defeating. Similarly to Lastpass notes, credit card info, banking routing info etc.
A crude current workaround would be to keep these information in DRAFTS (with a proper indexing) in ProtonMail, but we ought to have a better way.

I would love to migrate my cloud storage to a company I trust with data residing in a country such as Switzerland or Iceland. I already pay Apple for storage and would even pay more to switch to such a service

Adding a viable (!) cloud storage option is the next step for ProtonMail! It should:

1. be priced similarly to Google / Dropbox (otherwise people won't pay)

2. more pricing / storage options than the competition (granular storage space selection)

3. APIs - at least REST (also provide attributes like sha-md5 hashes)

4. A fast & secure web version of it; one can add Android, iOS, Windows & Linux apps later.

5. Similar encryption structure to how ProtonMail already works.

6. Limit sharing (only in combination with a file/folder specific symmetric password.), otherwise DMCA will subvert security/anonymity of users and subvert ProtonMail mission.

7.

Keeping the digital datas are the major concern now a days. So try to develop a safe and secure platform for storing the data. It will help the customers to avoid creating email IDs like gmail to use Google drive.

I use Linux. I feel safe to store my data offline. But there is no cloud drive to trust for privacy and security. Please bring this soon and for free users too. Thanks!

I would also like to see a Cloud drive service from Protonmail. Right now I'm using pCloud and very happy with it. Their approach to desktop sync is excellent, as you can set it up as a virtual drive, therefore the drive is gone when you turn off or restart your PC, which gives me peace of mind in case my PC is stolen.
They also have an encryption add-on.
Here's a link for a free trial if anyone's interested:
https://www.pcloud.com/welcome-to-pcloud/?discountcode=RbdDbTwE0FYQ3hvq8OJ9UHZV

Without going full blast like Tresorit, I think there is room for useful additions, especially if they are tightly integrated - I like what Fastmail has been doing: having Notes, for quick reference, and a file system which can be accessed by FTP or Web addresses (with or without password security).
What Fastmail lacks tho is a way to edit *internally* documents kept on these files or notes (without necessarily having too many Word/ Excel bells and whistles).
What is important is to have critical information secure and easily available within Protonmail

This idea crossed my mind, too. But I think ProtonBox would be a better name, even though it's not quite as self-explanantory as ProtonDrive. ProtonBox has assonance. ProtonDrive sounds kind of like the name of some fundraiser.

OF COURSE FILES HOSTED BY SERVERS LOCATED IN SWITZERLAND

yes all for it and in as protonmail is amazing and secure and would feel a lot better than any other service out right now

I like this idea a lot, but I think to be able to start this, we would have to pay much more to ProtonMail company, so it can host much more Gb of our data....
Right now even the free mailbox storage is too small for me to fully switch to PM.

It would be amazing if you use Collabora Office !!!!

It would be amazing if you host a nextcloud encrypted systema with share and collaborating office suite like Google Docs. It could use the Free and OpenSouce Collabora Office (Its is LibreOffice on-line).

Some Nextcloud service already offer Collabora Office, but no one is swiss based and have seriously encrypt.

You ProtonMail guys could use the Collabora Office, its open souce and based on LibreOffice. It would be amazing and would beat services like GoogleDocs

Tresorit+Protonmail is the combo.
Both are secure, private, easy to use, and under Swiss legislation.

Personnally, it's Tresorit which first convinced me to leave all those US-based companies (Google, Dropbox, Doodle...), after leaving Spideroak (USA legislation) and CNRS-hosted-owncloud that I could use for free (after a known bug reversed one day of work).

So integrate with Tresorit, partner with them, even buy them ultimately, but focus on what's missing to users, not on what already exists.

This is already provided by other services, so I dont see rhe point. I use Tresorit, which works great. Please focus on things that do not exist. Better integrate with existing private/secure services, and/or do a commercial partnership with them, or buy them if you have big ambitions.