BitShares mobile wallet concept - thoughts?

As a UX/UI designer who also enjoys a bit of cryptocurrency trading and accumulating (especially Bitshares), nothing gives me more pleasure than designing tools I would like to use for myself.

I wasn't sure if there is a mobile wallet available to manage bitshare transactions between friends so I mocked up a few screens. Feedback is highly welcomed as long as it's constructive. What would you like to see added / removed / changed? Perhaps this is all a waste of time? Let me know in the comments!

Initial login screen

The wallet tab is the default tab displaying your balances. Users can Send and Request payments from this screen.

Here we have a send screen. You can choose which account to send from and the username to send to. Likewise, users have the option of scanning a QR code or adding a user from their contact list. Typing the username would also bring them up from the contact list (not shown here).

The request area is pretty straight forward - you can show your QR code to someone wishing to make you a payment or copy your username and share it right away via a method of your choice - be it into slack, email, sms or a host of other options.

Please leave feedback in the comments!