I also did this PoC in .Net
It includes an example application that you can use to "frame" your Scirra games, there were also some initial speed tests taken:
scirra.com/forum/c2-wrapper-exe-in-c_topic44584.html&sa=U&ei=NRRBT8qoGszImQWXsbzSBw&ved=0CAQQFjAA&client=internal-uds-cse&usg=AFQjCNGI-qs1ju6Vwdp-lragsHDOhyRV0g
Remember it was just a PoC :)