I dont know if anybody here reads the nicemac forum but they have been working steadily to get a new starplayr3 out for Mac users
Starter: v1.3.5 Preview (dmg)
http://starplayr.com/SP3_Previewz/StarPlayr3_S135.dmg
Second String: v1.3.7 Pre-Release (zip)
New Stars/Recent Channels Popup Menu
Next Release, v1.4.0
Independence Day
July 4th, 2009
The first preview of StarPlayrXM (For XM subscribers) will be available on July 4th, 2009.
Requires:
Sirius Radio Account (XM Subscriber Support is Coming Soon)