Phoenix Viewer is a feature-rich, third-party viewer for Second Life, based on the original Second Life Viewer and on Linden Lab's Snowglobe.
Important Phoenix Viewer Update:
This is a VERY important update!
* Most important in this release and a reason you really all need to update is because in version 1600 we missed a very important inventory folder icon for Direct Delivery. LL will be enabling this feature on March 21st and without this update your inventory window will become "Visibly" broken.
* As well as falling into compliance with LL's new Policy changes, this update goes out with some very important changes, fixes and improvements including the V2 inventory fetch system which makes inventory fetching much faster and more reliable.