A black AT & T Palm Centre should be available soon (official color is "Black Obsidian"). In fact, it's rather strange that AT & T will not release this color in the first place, because it usually "wild" colors come after the original version bland. But, in any form, this new black AT & T Center Palm is a very nice handset.
No new features will be added to this new version, but here the black stock AT & T Center Palm specifications: Push-to-talk support, the Palm OS will feature touch screen. Its QWERTY is reported to be as good as those of Treos. The handset also have 1. 3 megapixel camera and support EV-DO. Source.