PS3 ver 2.10
Wow if you've read the comment in the post below you'll see a list of some of the features. What I didn't know was that the update has an amzing effect on a PSP as you can now use Remote-play on PSP to play PS1 games from the PS3. This doesn't just mean the games bought from the PS Store but also any PS1 discs. I tested it using the PS1 games on the HDD. Then booted up Music 2000. I was playing the tunes I'd created on the software stored on my PS1 memory card that I'd transfered to the PS3. Not sure whether it was working properly but just having the ability to use it is an amazing feature.
Also the backwards compatatbility has been updated which means that finally SSX: Tricky and On Tour now work. Sadly Tricky doesn't work in DTS, boo. Also Buffy still has same graphic issues.
PSP ver 3.80
I've not noticed anything additional to what was mentioned in the below blog entry. If I discover anything interesting I'll let you know.