Re: Waiting for 9.10...what to do ?
No need to upgrade to 9.10 unless you encounter that you need an application that requires an upgrade. For instance kdenlive (video editor). Kdenlive as it is available in 8.04 is very different (0.5) than the kdenlive version in 9.10 (0.7.6) because it had a very active development over the last year.
I have always 2 versions of ubuntu installed. Once per year I upgrade or reinstall the oldest version. I upgrade if I did only little compilations; reinstall if I compiled a lot of apps and used a lot of third party repositories.
AMD64X2 3800+ 3GB Ram: 11.10
ACER one T1810 : 11.10 64 bit