It's nice that you are making a version for iOS, but it would be nice if Microsoft ever put their own platform first for a change, and show other developers that Windows is actually worth developing for.

So far it looks like only local, One Drive and One Drive Pro are supported for opening Visio files. As a heavy user of other online services as well, adding support for Google Drive, DropBox, etc. would be really useful. I suspect you can integrate these from the application's own sharing APIs (i.e.: if Google Drive is installed, you get a hook for it).

Sync saved locations (e.g. OneDrive, SharePoint) to my Microsoft account so I have them across all apps

It is really unclear from the release notes that the feedback button is the second one from the left when a Visio file is being viewed. Why on earth wouldn't this be available from the main page (documents list) as well? Frankly, some of the icons are hard to identify. The right-hand one is easy (full screen) but the second-from the right apparently zooms back to full page view, which is unclear (and should be disabled when already in that mode, right?).

When working on a documenten offer a "hand off" button to open or view the document on the PC on the same network and account. Same for documents opened on the desktop. Open on smart device.
This would be a seamless experinence.

Allow objects to be selected and show the shape data in a window

I hate apps that use only icons and have no text descriptions. I get lost and don't like using those apps. please include the option of visual text descriptions, for us old folks that cant read hyraglyphs.

the apple note app uses a virtual ruler for drawing straight lines. i would love to see something similar.

When in full screen mode and the document has multiple sheets, it would be nice to be able to swipe from sheet to sheet.

I can now see the Visio, but to be able to use it, I need to either print or send it. My printers at work support email-printing, not AirPrint. So, a PDF output to an email would be very valuable.

I have a 9" iPad Pro with the latest update from 9/12 of Visio. I can open files from local (uploaded via iTunes) and OneDrive, but several of them are crashing when loading. These are not large or complex documents. If you have a direct messaging method, I can share the files with you for testing.

IOS 10 photo edit markup then can be used to add comments to diagrams.

Support Tencent Weiyun cloud drive for China users. Word, Excel and PowerPoint have already support the Chinese local cloud drive.

The search button opens a search bar, but there's no obvious way to get back from searching without doing a search. I stumbled on it - click on the document again, but that's not intuitive. There should be a cancel option somewhere in the search bar.