>Another commenter says that the project wiki suggests using qemu to run the x86 code on ARM, and then trap calls into native (ARM) WINE libraries. This approach seems unlikely to yield good performance. I am concerned that different C and C++ calling conventions means some additional work will have to be done to cleanup function arguments at every call, which is just more overhead on top of x86 emulation…

There is already similar project about running x86 windows application on top of Windows RT:

http://forum.xda-developers.com/showthread.php?t=2095934

It will be interesting to compare.