I have noticed that there was no Alpha 4 release announcement so I grabbed a daily build to find out why. The installer has been redone and it looks great! The picking your region is not the jumpy mess it used to be, it is clean and organized. Too bad the installer does not work...The install does not partition the hard drive. I notice the new volume control layout is still present, they seem to have removed the features they were having problems with. The default applications are up to date and Brasero is at a much higher version than I knew was available. The system menu was missing, Shutdown, Reboot, etc, currently there is only the panel button for these choices. Jaunty is still looking pretty good for an alpha and there is still plenty of time to iron out the rough edges. Oh, almost forgot, memory use seemed to be much better.
Edit: I looked at the wrong date for Alpha 4, it comes out February 26th.