For a long-term supported (LTS) release, Ubuntu 10.4 has chosen a distinctly unpolished tool in Gwibber to be their front-end to broadcast messaging.  The damn thing doesn't survive hibernation - a serious issue to a mobile user like myself.  

I start working, and when I go mobile, I chose hibernate over shutdown.  They also don't have laptop-optimized kernels either.   Ubuntu desktop is a workstation desktop - disable high-res timers and save my battery life.

I like where the project is going, but really, they need to do better for their pinnacle releases.  Bleeding edge doesn't belong in an LTS release.