I sometimes find it hard to find skins or apps for my particular version of IPB in the marketplace, its often hard to tell just from the search page what version things will work with. I would like to suggest that as part of the client-side of the IPB system that we could 'register' the version of IPB (and add-on apps) that were using so that the marketplace would display only things that were compatible with the version your using.

This will work even better when the 4.0 suite comes out and all the apps are on the same version number system.

Wouldn't be do hard if they use TAGs: