> -Right now, everybody's needs are being met by the > combination of x86 and AR...

   > -Right now, everybody's needs are being met by the
   > combination of x86 and ARM (with some POWER, MIPS, and
   > SPARC on the fringes). These are doing well enough
   > right now that very few people are going to want to go
   > through the work to port to a wildly new architecture.

That's not true at all. The biggest high-performance compute is being done on special parallel architectures from Nvidia [1] (Tesla). Intel trying to bring X86 back into the race with its Xeon Phi co-processer boards [2].

[1] http://www.top500.org/lists/2013/11/

[2] http://www.intel.com/content/www/us/en/processors/xeon/xeon-...