Many people (including me) was pretty dissappointed with Ubuntu 11.04 with it's Unity feature. It's like unfinished work which was forced into user's hand and in the end, many people hated it.
Well, that's five months ago and right now, Canonical is preparing for the release of upcoming 11.10 Oneric Oncelot which should have brought improvements compared to 11.04 release.
Manuel Jose has written 12 Things New in Ubuntu 11.10 along with screenshot tour to help you understand major changes that will be integrated in the final release of Ubuntu 11.10. This should give you a glimpse of what will the next Ubuntu release look like. I'm pretty sure you will find the article quite interesting to read