They've been creeping into the big data sector for a while now to the point that we're finally getting them paired up at intel - interesting to contrast to amd's APUs:
I think this place also speaks volumes:
The thought that within a year a small machine the size of one of the longer ITX media pcs running at 600 watts or so could have 60 teraflops is pretty amazing/salivating.
ps. Finally some benchmarks showing the 290s awesomeness over the bloated and inefficient titan! Now do some benchmarks with double precision floating point and you'll discover how gimped Nvidia makes their hardware.