Just updated my PS3 to the new 2.50 firmware.
1. There is an option to turn off the PS3 and/or the controller after a specific amount of time.
2. The browser supports flash. That measn you can watch youtube videos right on the PS3.
3. Account management are more integrated into the XMB instead of a disjointed website.
4. The PS3 seems to recognize MP3s on my Windows Home Server properly now. Before, they were recognized as PCM files instead of MP3.
5. My PS3 can actually play some Divx/xvid videos stored on my Windows Home Server. Before, none of my videos (Divx .avi, .mp4) are playable (they are all shown as unsupported format) even though the PS3 is supposedly Divx certified. Now, some of them are actually playable. All of the videos are listed, but some are still ended up as "not supported." For the ones that are playable, there is still overscan issue (same thing with the Xbox 360) where the video appears cropped. There are folders on my server that are still mysteriously not listed though. For watching Divx/xvid videos, having an actual PC connected to your TV is still the best option, especially from a networked server.