I was pretty surprised by the IPS screens. Great for photographers who want a simple setup with no fuss. Throw in some network drive backups (...maybe not timemachine aha) and thats a fairly full proof editing system especially on that 27 incher.
the 16:9 ratio is a bit meh, I like 16:10, its closer to 3:2 than 16:9 is, and if the screen can do good blacks then surely bit black at the top and bottom won't distract anyone.
Apparently the speakers on the 27 are much better too.
HOWEVER DO NOTE! The i5 doesn't have hyperthreading, so on multithreaded applications the i7 should have a fairly big performance boost from that. Shame they couldn't have dropped the i5s with hyperthreading in, for video editing/encoding thats a fairly big boost.
But hey, I'm just waiting on my 12 virtual cores coming out
Canon EOS 5DmkII + BG-E6 + Canon EOS 40D + BG-E2N + Canon EOS 33
Canon 17-40 F/4L
USM + Canon 24-70 F/2.8L
USM + Canon 28mm F/1.8 USM + Canon 70-200 F/2.8L
USM IS + Canon 85mm F/1.8 USM
Canon Speedlite 580EX II + Canon Speedlite 540EZ + 2 x Nikon SB-80DX
Cactus V2s Wireless Trigger - 5 x
Cactus V2s Wireless Reciever