Microdata/microformat for better Google SERP results.

Use of meta description. This is a major issue.

Cleaner URLs and use of rel=canonical, example of same pages different URL
https://www.ubbcentral.com/forums/u..._is_UBBSystems_and_versi.html#Post243776
https://www.ubbcentral.com/forums/u..._UBBSystems_and_version_.html#Post243728
About rel=canonical.....
http://www.google.com/support/webmasters/bin/answer.py?answer=139394

Fine grained control of sidebars. Able to have L/R on Forum List and Active topics etc, but only one on showflat.

I'd like to see user Like buttons (not to be confused with Facebook Like) that ties into a "trophy" system, similar to how Xenforo does it.

Won't you take me to Funkytown?