And there's the Mill if you're willing to be somewhat more exotic.
http://millcomputing.com/
Talking exotic, look at No Instruction Set Computing (NISC) which was at least prototyped and published synthesis/compilers:
https://web.archive.org/web/20080302041756/http://www.ics.uc...
Really interesting stuff. Reminded me of Tensillica's tools that create a custom processor for your application. Need to accelerate your Hadoop, etc application? Run most of it on Intel CPU with an onboard FPGA & NISC tools doing the critical path. Intel's Altera acquisition might make something like that achievable in future.
Note: Used archive because their site is having a configuration error.