[Suggestion] Subtle but important UI issues
1. The camera is too stiff. A little accelaration at the beginning and end of camera movements would give the game a more elegant feel. An example of this being well done is the game Darwinia (also Multiwinia).
2. Tab should move the cursor between text fields.
3. In the password text field, tab should not produce visible text (for me it shows a box with an X in it).
4. The text in the password text field should be masked.