The second public snapshot of Asphyre 4 dated 25-Jan-2007 has just been released.

You can view additional information in this post:
http://www.afterwarp.net/forum/thread1040.html

Also, Asphyre Wiki is now available and even contains a new tutorial for Asphyre 4:
http://asphyre.afterwarp.net/wiki/

For an up-to-date information about all Asphyre releases, check:
http://asphyre.afterwarp.net/wiki/Asphyre_Releases