It will be interesting to see the reviews of this chip once a laptop get into the hands of a miner. Trinity is not quite ready for the desktop but performance should be pretty easy to translate between the mobile and desktop space. What I'd really like to see are some efficiency numbers while mining. Bulldozer for all its faults was actually pretty good at conserving power when idle, and Piledriver is supposed to be considerably better. With the GPU also on a 32nm process and no additional external circuitry needed other than what is already running for the CPU, the marginal energy/MH might be very low for those 384 shaders even if they only net you 80MH/s or so.
There's probably no point for a dedicated miner since the added hashing would never recoup your cost vs a single core AM2 chip and finding an FM2 board with 4+ PCIe slots might be tough, but it will be interesting to see how these play out. 20000 Trinity A10 chips mining away at low intensity would be tough to notice since CPU cooling is generally more silent that GPU cooling, and that would be good for 1TH/s. Considering how popular Llano was for AMD, there might be a lot of these in the wild next spring after people unbox their new computers after Christmas.