LOL, ATI needs to sort out whether they want to fit the budget gaming market niche or the elite crowd, esp now that Intel has what appears to be a definitive Phenom killer in the i5.
Why are the two mutually exclusive? They've got both covered anyway.
Just because EyeFinity can do better than TH2Go without (apparently) too many problems, doesn't mean ATi are abandoning single monitor gaming, or the low end. GPU and CPU divisions are separate, don't forget. There is nothing stopping ATi from having these insane monitor count setups on an i7 system. I know I intend to do it with my X58 rig, rather than run a Phenom II. Although I'll admit it'll be likely they'll market it with the "Runs best on Phenom II" (probably when they get the hexacore CPUs to desktop, or possibly the 12-cores - some posts on XtremeSystems show a 2.2GHz 12-core Opteron hitting 3.2GHz without much trouble at all...)
Regardless of that, i5 is anything but a Phenom II killer for one reason very important reason: multi-GPU. The single PCI-E gen 1.1 16x lane that the onboard PCI-E controller can do will kill GPU bandwidth in any scenario where there is more than one GPU. Multi-GPU is a scenario where Phenom II is ahead of Core i5, and nagging at the heels of Core i7. Sure, i7 can encode a lot faster, but for pure gamers, there is no reason to avoid Phenom II.
But basically, anyone who wants this sort of ultra-high-end rig is going to buy it. It'll probably keep AMD alive if Bulldozer isn't the killer they're making it out to be. Anyone who doesn't want ridiculous numbers of screen is going to go to either ATi or nVidia, as they're not going to care.
The fact that a single 5870 can drive six screens and apparently have the framerates playable is going to make nVidia nervous, I bet. If RV870/890 is as good as that, GT300 is going to have to be stormingly good, or nVidia are going to have to cut their own throats to get them to sell (I can't see a huge monolithic die like GT300 being cheap to make, nor can I see yields being good) much like the huge price cuts shortly after GT200 launch, when ATi's cards were 90% of the speed for 50-60% of the price.
That being said, ATi sure are gonna have to get their drivers 100% sorted out... I'd hate to try troubleshooting driver issues for 6 to 24 screens. Further more... that six screen 5870 better come with all six of those mini-display port to DVI adaptors in the box, or there's gonna be trouble. If that 24 screen four 5870 monster can be run off of a 1200w PSU, that says good things for the power draw of RV870, too - maybe they finally got that GDDR5 idle power draw issue more under control. Especially if the card is supposed to draw <190w loaded and <30w idle. That'll be really amazing. Now, if Stanford could get Folding to run well on ATi hardware again (remember, with the X1900 series it would run on ATi cards at the time when it wouldn't run on nVidia cards) then this gets (again) even more exciting.
EyeFinity will be amazing for lots of things other than games, though... I think nVidia's screen spanning SLI on their Quadro cards just got a serious competitor for CAD/CAM and medical fields. This EyeFinity
might just force nVidia to unlock their Quadro spanning SLI tech on normal cards as well, rather than making people buy crazily priced cards.