Wakkawiki.com has a fairly simple autoinstaller, similar in looks and operation to the NucleusCms? autoinstaller. It's one of the reasons I set up a Wakka.
However, Wakka does not support Free Links, and I am very interested in the Free Links attributes of Tavi.
Php apps seem very compatible with Fantastico CPanel installer, which with the recent 2.5 release, which included WordPress? 1.0, still has no wiki. http://fantastico.com
-Joshua Forest