I just got a G1 to replace my Nokia 6680. I think it compliments my N800 very well. It has a great little keyboard and checking email/ maps is VERY FAST, but at the end of the day, the interface is built to be a phone. However, the N800 is better at being a computer and I feel that the browser is better b/c of flash plugin and rendering like a desktop browser; also, apps like Canola, gFTP, Abiword and Skype rock the socks off of the G1.

In regards to G1 vs. iPhone: The G1 is also "hackable" and is not as locked down as the iPhone; e.g., apps can be downloaded outside of the market directly from the developer, the device itself can be turned it into a wifi router, you can run alternate operating systems, etc. So, since both Maemo and Android are "hackable", I think they make perfect mates.