http://www.mediatek.com/en/mwc2014/mediatek-launches-mt6732-a-64-bit-lte-soc-to-spur-the-new-super-mid-market/
64bit!, quad core, 1.5ghz, Mali-T760 GPU, ram ?GB
while open source drivers might not be ready just yet for the T760, I'd have thought that the current drivers are a much better start than sgx ?
Lets hope its not too expensive - could make a nice home made laptop...