I feel that I must preface this writeup by first saying that I’ve never really gotten why people would want to look at photographs on their TV. Having slide-show functionality and ability to organize photos on a computer is something that has always been possible so having that functionality elsewhere isn’t really that exciting for me.
That being said, for those who do want something like this the Photoshop Photo Gallery seems like it would be a good choice. It gives you the ability to organize photos by date and time, what camera was used to take the photo, colors within the photo, number of subjects, ages, and even facial expressions. Some of these are admittedly pretty cool. Once organized you can create playlists to be used for slideshow purposes.
The program itself is well put together, looks cool, and uses some pretty interesting effects for page transitions and stuff. It seems responsive and quick to load as well. I havent tested if it can display Raw images but I doubt it. If you are at all interested in displaying photos on your PS3 its worth the 104MB download in addition to the 2.6 firmware update to check it out.