Today Jessica Lyon announced the Phoenix viewer is now on the Third Party Viewer (TPV) List. Congratulations!

See: Second Life Viewers and the Third-Party Viewer Directory and Phoenix is on the TPVD by Jessica.

I see that two other viewers are on the list since I last looked. One is Ascent. The other is Emergence.

All of these viewers are based on Snowglobe 1.4 and 1.5 code for now.