I took the plunge and upgraded from Ubuntu 9.04 to Ubuntu 9.10 on my work laptop. The process was incredibly smooth, and there’s not much to it apart from that. I’m crossing my fingers and hoping the dbus problems with 3G dongle PPP connections have gone away.
I am waiting for some free time at the weekend and a pair of 1Tb hard drives before I take the plunge and install the 64-bit version on my desktop at home.