Earlier today PlayStation Network Operations Director Eric Lempel announced that PS3 Firmware 2.80 Update was coming, and it's now live to download!
Here is what he had to say about it, to quote:
Hello, I just wanted to provide everyone with a head's up that the next PLAYSTATION 3 system software update (v2.80) will be coming soon. The playback quality of some PLAYSTATION 3 format software has been improved.
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Another hidden feature in 2.80 - All the add on controllers (GH / RB, Buzz etc.) are NOT mapped to controller 1 anymore so you don't need to keep pulling them out or changing your normal controller to port 1 everytime you want to play another game now
Nah, it's probably just that the patch has very little useful in it.
From the ps3-updatelist.txt file:
# EU Dest=85;CompatibleSystemSoftwareVersion=2.7600-;
The CompatibleSystemSoftwareVersion was used once before, I think around 1.70 or 1.90. I think all this tells us is that PSN hasn't changed since the last release.