Ok. Everyone knows DSi doesn't support Facebook chat.
Many of you may know about Ebuddy.
If you don't, Ebuddy is a website that allows you to chat on major networks.
So, you can go here and use the Facebook chat, by signing in there, It will show your friends in three ways
• Online
• Offline
• Silent [Online with chat off]

Ebuddy has a newer interface, and has an auto reload to keep the messages current.
If you want to chat from DSi on MSN, Facebook, GTalk and more. Go here!