Next week, ObjectBar 1.0 will finally come out after nearly 2 years of development.
During the beta, nearly 60 different themes for it have already been created. ObjectBar's features though are primarily in productivity. The fact that it also has perhaps the most flexible skin format ever created for a program of its kind is just a bonus.
No program available can do the things ObjectBar can do. For Windows 98/NT/2000/ ME users it can do the Windows XP start bar completely. We're not talking just looking like it, it can provide the actual new functionality of it. At the same time, it is flexible enough to also do the MacOS Finder bar - not just look like it, but act like it (including stripping menu bars from your apps and having them as part of the bar).
Check out this guided tour to get an idea of just some of the things it can do.