Social.IM on Facebook

Hmmm... At www.Techcrunch.com 's request, I tried www.Facebook.com 's Social.IM. It's still kinda buggy. I installed it to my XP laptop first and it had trouble automatically logging into facebook. It reminded me of setting up a network, if the sequence was wrong it just hung. First I tried to log in to Social.IM while already signed into Facebook. That didn't work. Then I logged out of Facebook and signed into Social.IM...No go. So I went back into Facbook THEN signed into Social.IM and the app fired up under Facebook's app page. After that the actual program kicked in and that part was done. Strangely it had me select friends to invite like three times from the webpage, but the stand alone app still wanted me to "click to invite" my friends... I probably won't put this on my VISTA laptop if it was this annoying on XP. I guess I won't know the other half(the actual instant messaging side)until some of my friends install Social.IM too... Befriend me so we can figure if this will be the next "killer app"...