Thanks to mithro, the Pygame.UI was separated from IGE - Outer Space project it has been part of and intensive work on the library has begun.
The new version of Pygame.UI is stable enough to go for version 0.4. In the near future I'll update CVS and prepare new release versions.
New version 0.3.2 has been checked into CVS.
Yesterday I finally imported sources into CVS. From now on I'll update CVS regularly.