It's your skin, so it's really up to you, I think it would be good to release it as a transparent skin so those of us who want to change the background can.
Like I said, I can help with that part of it. If you send me the Photoshop files, I can mod them and send them back. (I actually already started with the audio browser screen, just to see what it would look like.)
Otherwise, I do have a few suggestions for you;
Font is a little bland and doesn't really match the theme. I suggest some kind of LCD or digital font.
The OSK has square keys, but is the only thing with sharp corners. Round them out to match the radius of the rest of the skin. Also, there's a lot of wasted space IMO, so maybe moving the "Shift" and "Enter" keys to next to the space bar, and moving the "ESC" and "Back" keys to the number row, this would allow you to have the keys fill more space (in turn making them easier to target on a bumpy road) and lastly, the bar that shows what you've typed is kinda big, here's what I would do with the layout (I only have MSPaint here at work, so it's rough: )
And lastly, a common audio control bar at the bottom would help make it easier to use.
(You don't want to have to exit the GPS screen just to change to the next song would you?)
These are just some ideas though. Otherwise, this is a great looking skin.
..and i would prefer volume controls..
Linear Mode
