[slivym]

Using OpenCL to program an FPGA is a significantly more difficult task than programming in HDL. Atleast for what would be relevant to a Xeon co-processor. The OpenCL flow is just terrible at getting to the performance levels you need to realistically offload anything from a Xeon. Intel are certainly working on it, but that's not a realistic proposition for the next 5 years, and if the Xeon+FPGA isn't already successful in that time frame, it'll be canned long before OpenCL is a solution.

From what I've seen the only applications for this will be pre-canned FPGA images that were written in-house by Intel for things like encryption or FEC.

[clouddrover]

Video encoding would be another good application for the FPGA.

[slivym]

I'm not so sure - it's a fantastic fit for GPUs, FPGAs make sense for stream processing for video encoding - but that's more of a discrete device play where you can plug the video feeds directly into the FPGA daughter board.