1. I tried to install the app on my Transformer tablet and the GUI isn't adapted to the higher resolution. Any ETA on when we can hope for a fix? The graphs and depth info gets really small.
Sorry about that, this is a known issue and we will get to this soon unless Honeycomb 3.2 can make it to devices sooner. If you visit
http://mtgoxlive.com/orders you will be able to see the view in a full screen. It is merely an issue with the app and "xtra large" screens/honeycomb. What Android OS are you running, sir?
2. When I exited the app on my Asus Eee Pad Transformer TF101, and tried to relogin again, there is no "submit" button or equivalent to submit my password.
This is very strange and could appear to be another UI issue with the newer tablets. We will get to this as soon as possible, as being able to use this on a tablet is very important to us.

Thanks for the feedback and your continued patience as we bring the application to more devices.