I think the description is pretty nice as is, the first line clearly explains what the app does - it places an icon to powerkey menu reading Tablet Mode/Phone Mode.

Currently I won't localize the app name, simply because I didn't ask for translations for that originally Lets see later if its necessary, I'm somehow feeling that localizing app name is a bad thing in this case, despite Tomasz convincing me that CMCUI isn't a cool short name ;-)