We're close to having a beta release out of Trac, Site and Fund$ (hopefully by the end of next week). When the beta release is out, I'll put a posting up here giving a list of the features on it as well as the additional features for the Fall release. You're suggestion is very good though and for future releases we'll do our best to let you know what we're planning for that release. Just realize what's planned and what actually happens are seldom the same. There's always something we want to do on a version but can't quite fit in. Also, when we get a real good suggestion we'll often add it to the next release, even though it wasn't planned.
The idea of being able to switch between projects from the File menu is one that we've heard before. Don't look for it on this release, but sometime in the future.