Doubt anyone has one yet, looks like they came out last week, but they are quad-core CPUs with an internal GPU core with 400 shader processors. While clearly not a powerhouse, I'm curious to hear when someone gets one and tries to mine on it.
Looks like they are about $130-150/retail. Looking at the motherboards that support Socket FM1, the most you'll be able to fit is 2ish GPU cards, but possibly a spare slot for an FPGA PCI array (the mobo's seem to be in the $100ish dollar range). Of course, all this is brand spankin' new to market. I'd probably want to wait for some more developments to arise before I look at getting one.
This may (haven't done the math here) be more cost effective then going with a Sempron considering the low wattage of these new chips (at least the AMD A8-3800 looks like the wise choice along this train of thought). The A8-3850 runs faster, with more wattage, and no TurboCore, but it doesn't really need it. If you mix-in CPU mining, it may be handy to go with the 3850.
Reviews:http://www.guru3d.com/article/amd-a8-3850-apu-review/1http://www.bit-tech.net/hardware/cpus/2011/06/30/amd-a8-3850-review/1Thoughts?
OR IF SOMEONE WANTS TO BUY ME ONE I'LL LET YOU KNOW HOW THE MINING GOES 