SkyAmp 0.9 is the current release. It can be downloaded here. Source code is also available.
It allows for the creation of lists, categories and configurations. It will not call WinAmp as of yet, but it will allow
the user to create playlists of arbitrary length.
SkyAmp is currently in a proof-of-concept phase. Any suggestions for improvements are most welcome on the SkyAmp-Discussion mailing list.