Fascinating! - we keep receiving reports from Beta users that PlayOn works on their other DLNA compliant devices. So - thanks to the brave beta users who have been "playing around" with PlayOn - we can now report a much larger list of devices that you can PlayOn. In addition to the PLAYSTATION 3, Xbox 360, and HP MediaSmart TV, we have reports that PlayOn works on:

D-Link DSM-520
D-Link DSM-750
Popcorn Hour A-100
Pioneer Elite PRO-1140HD TV
DirecTV HR21-100 HD DVR
DirecTV HR20 Receiver

If you have one of these devices, try it out - and let us know how PlayOn does. We haven't tested it on all of these devices, so we can't give you installation instructions, but if you get it figured out -- feel free to share your experience with the rest of us!