Let the hive mind of Engadget get that for you.
"I am looking for a device that will stream sound from one source to several recipients. For example, I want to stream sound from my TV or stereo to my phone or MP3 player that has radio and Bluetooth capabilities. I have looked into radio transmitters and they seem like a decent choice, but I can't find one that uses external power (USB or from the plug) and I would want one with a transmit range of around 50 meters. Thanks!"
It's extremely unlikely they could add automatic upscaling even if they wanted to.
The PS3 and 360 have different upscaling solutions. The 360 has a built in upscaler that upscales every game automatically to the user's chosen output resolution, irrespective of the input resolution.
The PS3 has an upscaler but it doesn't work the same way. By default the PS3 assumes modern HD sets can up/downscale between 720p or 1080i so games must output at least one of those resolutions in addition to SD. Therefore up/downscaling is done by the TV not the console. The only place where the PS3 is caught out is there are some early HD 1080i/480p-only sets which don't support 720p at all. So if the game doesn't do 1080i, it will play at 480p instead. Burnout in 1080i is most beneficial to such users although they must be a rarity these days.
The 360 solution is more elegant and consistent since scaling is in the console but it requires dedicated hardware. The PS3 solution is only a problem if you have an old HD TV or a TV with crappy up/downscaling.
The PS3 actually does have some upscaling capabilities to offer some anamorphic resolutions which are stretched but they have to be explicitly programmed. It is probably what Burnout is using to achieve 1080i.