The competition is already using the E600 and GMA600, a successor to the GMA500.
The clock the E600 rather low (currently they ship up to 1.3GHz, compared to 2GHz for haven't looked at benchmarks) and their default case hasn't changed quite much in the last years. It looks rather large. 1,8" HDD, don't know if I like this or not. When not comparing to fitPC2 but to their own Z500 unit: They skipped the CF slot, thats quite bad :/. Are they shipping by now? Price information?
Comparing GMA600 to GMA500 is like a nobrainer. For what I read, they are based on the same PowerVR core - just higher clocked. We have 1080p support on GMA500 so I really don't see where this upgrade wants to score. The main weakness will be - just like gma500 - driver support. This is the windows subforum, so no ranting about linux support, but even windows drivers aren't in a good shape. They are usable, but core problems still remain. Let's wait how software side will develop -- for both, gma500 and gma600.
I might sound quite pessimistic, but Z600/E600 aren't that cool. They are way better than current poulsbo. E600 is a lot more than just a solid service release. It will likely replace poulsbo setups sometime, but the overall situation wont change. Same market, slightly better performance. No big deal.
You can compared the Z500 to E600 line at . Be aware that I chose E680 vs Z530 vs PCH EG20T vs SCH US15W to have products at the same clock level. You need to compare the chipsets as well, as E600 series incorporated more in the CPU itself. Keep in mind, that information provided there might not be complete by now.
 http://ark.intel.com/Compare.aspx?ids=5 ... 2501,35444