I,ve been busy, over the weekend, browsing around for anything interesting on "7"
It looks like, at this stage, it's a matter of "what you see is what you get". But I did find this page. If anyone wants to see what the future taskbar is going to look like, run through this little execise. It is not so daunting as it looks. It worked for me.
Flashy Windows 7 bits protected by elaborate scheme, workaround - Within Windows