I really love the WPMU plugins!
I'm still missing a plugin where registered Wordpress- and Buddypress users with a Skype account can Skype with other Wordpress-/Buddypress users, one-on-one or in a chat room.
The plugin must create a profile field where Wordpress / Buddypress users may add their Skype username, it also creates your on-/ offline Skype status.
And in case the Wordpress / Buddypress user doesn't have a Skype-account, a popup appears where he/she has the opportunity to create a Skype account.
I've asked this a couple of times, wouldn't it be a great idea for you guys to create such a plugin?