When you are logged out of Dropbox, Todo.txt's login screen could look better.
Remove "Touch" from app title
Emphasize the "Log in to Dropbox" button with green background color. This is the single, main call to action here and it competes too much with the app icon.
Make the app icon more of a background / branding /decorative element than the big eyecatcher here.
This screen should also be optimized / centered / aligned correctly on the iPad in both portrait and landscape.
When you are logged out of Dropbox, Todo.txt's login screen could look better.
This screen should also be optimized / centered / aligned correctly on the iPad in both portrait and landscape.