Difference between Audigy 2 ZS Platinum & Audigy 4 ZS Platinum?

[Luthien]

Cant find much information on the new Audigy 4 ZS Planinum anyone have a link comparing them?

 

[Dahak]

about the only thing ive been able to come across is this Creative Link which is the details of the 4 Pro, which looks like it will replace the SB Audigy 2 ZS Platinum Pro