The skin editor looks nice from what I've seen so far... but I miss simple things like adding lines, some pre-defined logos and other bitmaps. And I don't understand why you can't zoom in when you selected the 2D-bitmap mode instead of the 3D mode... strange...
And I would like to be able to download those bitmaps to your PC and re-import them into the editor again. That would make things way easier if you have an graphic program and you wanna go a bit more professional. That could be realizable, couldn't it?