http://photos.appleinsider.com/mac_pro_100727_2.png

And along with standard USB 3.0 and Thunderbolt support, memory is said to be likely to see an upgrade to 1600MHz, an improvement from the 1333MHz memory in Apple's previous-generation Mac Pros. The new desktops are also expected to have 8 physical memory lanes, allowing for 25 percent more memory.

AppleInsider on Wednesday was first to reveal part numbers for Apple's considerable Mac refresh expected to be announced at next week's Worldwide Developers Conference. Among the more than a dozen new Mac models were three Mac Pro configurations with the name K5B.

Also expected to receive updates next week are the 15-inch MacBook Pro, 11- and 13-inch MacBook Air, 21.5- and the 27-inch iMac. Refreshes to the remainder of the MacBook Pro lineup, as well as the Mac mini, are expected to come later in the year.

http://www.iclarified.com/images/news/22422/82120/82120.png

New Mac Pros rumored with 8-core Xeon E5 CPUs, Thunderbolt & USB 3.0 (http://www.appleinsider.com/articles/12/06/07/new_mac_pros_rumored_with_8_core_xeon_e5_cpus_thun derbolt_usb_30.html)

Lion/M.L.+ only. ;)

(Not that I'm complaining. I have no quarrels with Lion.)

Yeah - it's going to force some forward and make for a big market in 10.6.8 machines.
some potential with a different video card to support 10.6.8

Meh, I've been using Lion on my main rig for quite a while now and have no problems with it. The last updates solved the remainder of my pet peeves so I'm happy. Nice to finally see some improvements to the pro line though. If they are only showing a new 15" MBP I'm assuming that there won't be any significant design change as far as the case goes. Just another speed bump I'm guessing.

well its a disapointing upgrade now