I've been thinking of doing the day skin in gray also. Maybe when I'm finished on it, it's possible I do a grey version also.
But first things first: I've been doing a little work on it today. Changed the Knob/Eye thingy a little bit. Now it looks a bit sleeker. Also the fonts are changed again. For the buttons I used Arial Narrow Bold before but I've changed them to regular Arial Narrow. Again a bit sleeker.
Also I've put a gradient on the buttons. Now the skins look a bit more vivid.
And I tackled the biggest obstacle. The OSK. For the brown version it's finished. Adapting it to the other versions should be a breeze now compared to creating it from scratch.
Screenshots, They are resized to resemble the look on a lilliput 16/9 screen:
I'm sorry if my English should be very bad today. I'm tired as hell and writing it is freakin' hard! Going to catch some z's now...