i can confirm @chephzpj the problem with the usernames in buddypress and facebook were solved. If you are having problems with user redirects to homepage then go to the plugin options page and under “debug” uncheck “disable buddypress filters” and it should work like a charm!
@kevin and @ MW, That’s exactly what i want to do too. i’ve installed WP 3.0 with multisite enabled and the last version of buddypress, everything is ok except i don’t know how to allow any user to create a blog. How can we do that? Can anyone tell us? Thanks!!