I’ve been playing with the preview of Google Wave for a few days now and overall I’m quite impressed. It’s still a little rough around the edges but I think that by the time it’s launched in 2010 it’ll be much better. And as developers start to build extensions it’ll become even more useful. I’m already pretty happy to use it for collaborating with friends on small projects and as a replacement for email and IM as Google intend. The only downsides are that it clearly uses a lot of Javascript and users with older machines may not be entirely happy with its speed and that it’s a bit more complicated than regular email and instant messaging.

Incidentally, I have a number of invites to give away, so if I know you and you’d like one, drop me a line.