It seems that Sony is having another SKU in the near future. Rumor has it that Sony will be having anywhere from 120GB to 160GB HDD Playstation 3 SKU up for ideas. This will include the new Dual Shock 3 controller that is rumble enabled. About the backwards compatibility which the 80GB PS3 lacked, we don't know anything about that. The price wills till be $499 so it will be replacing the current 80GB model. Byebye 80GB!
The source of this rumor is an Ars Technica "mole". Right now it's just a rumor where Sony Europe and Sony America has only to say "we don't comment on rumors". But isn't that the same thing that Kaz Harai and all the other Sony officials have said about the rumble enabled controllers?? ...assassin's creed going to the 360??? ...the price cut??? ...and they all came true. But don't take my word for it.