Well, I was going to go with a stormtrooper design, but it ended up describing a 'white' phone. Kinda boring. So how about this...
Accents: Bright Green, you know, that old-school terminal green.
Message: Shall we play a game?
Wallpaper: Matrix flying green characters on a black background... you know the one
(Psst.. If you pick me, I'll give you all high fives