dude, i'm on the same firmware as you are. there's a few sucky things about it, like the fact i haven't found a way to completely turn off the screen after a few seconds of inactivity (it goes to a darkened screen, not off) so i'm really interested in changing some of those features., as well as (maybe) some of the interface, cuz it seems to me it takes too much resources and does very little with them.
this
threadpretty much tells us not to try and mod this crappy interface.