Integrations with 3rd party services for better imports, syncing notes, and reminders [Edited]
You guys are implementing a ton of amazing features, and some of these build on standard features of other systems. It would be nice if there were integrations for synchronize a few of them:
Contacts
There'd be a lot of benefit in being able to bring in my Exchange contacts. If you're bringing contact synchronization to the table, Hotmail, Gmail, and Apple would benefit, as well.
Reminders
It doesn't appear that Reminders are live yet. If these had the ability to synchronize with Exchange Tasks, Microsoft ToDo, Apple Reminders, and other reminder applications, there'd be benefit.
Calendar
Part of your "Reminders" feature refers to dates. There'd be a lot of value in being able to see those reminders on my standard calendars. Outlook integration, for instance, may allow this.
Folders
Integration with folders would be super beneficial, but trickier. Having access via local folders on a PC would allow for simpler uploads and viewing of attachments. I'm thinking like OneDrive or Dropbox. Unfortunately, I don't think that software manufactures are ready to share cloud file hosting standards so that a single piece of client software can be used to access all of your files and directories.
Notes
It'd be amazing if you guys had a Notes feature, like Exchange Notes, OneNote Sticky Notes, or Apple Notes. Apple Notes allows for integration into third part Notes hosting, which would make this data easily accessible from a computer or mobile device.
Customizations
It'd be nice to have more flexibility with customizations in the app. Custom items and folders are useful, but custom sections and/or subfolders would allow for a higher capacity of things in an easily navigatable manner. The ability to hide irrelevant things on the side navigation would help, as well. The "All Items" navigation option shouldn't exist. It's redundant and takes up navigation space. I understand it's perceived benefits, but your app is easy enough to navigate without it.