Who says Twitter needs to catch up? As others have commented, Facebook and Twitter are complimentary and serve different needs. I don't think Twitter will ever catch up to Facebook. Facebook excels at keeping people up to speed with their friends. It's a closed loop, and all of the information flow is predicated on established friend connections. Twitter's strength is in the fact that you can follow anyone, whether they know it or not. Maybe it's a function of the people I friend/follow, but Facebook is more social while Twitter seems more informational. Everyone has a social life. Not everybody wants another source of information. This is an apples and oranges comparison. - Glen Turpin from FriendFeed MT Plugin

Speaking of trajectory, extrapolation, and pseudoreplication... Another interesting 36 year arc is Atari. Then there was the case of a couple of crazed gametes that fused 36 years ago and I was the result. Clearly, in 36 years I have not yet reached a level of cool to displace Atari logos on aging hipster tee shirts. Such fail is all too common. Let's hope Twitter gets cranking before it is too late. - Jay Cuthrell from FriendFeed MT Plugin

Nifty plugin! - Jay Cuthrell

I can tell you that twitter has the ability to scale quickly for "movements". Sure, I know there are tons of facebook groups but I don't think many people actually go and hang out in those groups. Twitter hashtag movements, although some are short term, do indeed grip large chunks of members when news breaks. For my own use, twitter is real time, facebook is old news and more of a diary of things that already happened - Daltonsbriefs from FriendFeed MT Plugin

Twitter maybe, what about Friendfeed (which is Twitter on steroid and, imho, its future)? - lelapin