[Cheung Tat Ming]

me too, also error.
This plugin is most want , but the author seem not develop any more….

[Cheung Tat Ming]

I have try Buddypress-Ajax-Chat latest version, it works!

Another important plugin – BuddyPress Maps

The author said he would to wait wp 3.0 and bp1.2.4 to dev next version, but i don’t agree take this off from the plugin list, because it is most important plugin to help BP to grow up.

Have a look : http://dev.benoitgreant.be/bbpress/topic/warnings-in-wpmu-292-bp-1221-and-bp-maps-028