I released a final patch to include binfmt_misc into kernel 2.1.36.
To learn more about binfmt_misc and to get the patch look at
http://www.anatom.uni-tuebingen.de/~richi/linux/binfmt_misc.html
I will send this patch to Linus on Sunday, if nobody complains.
(No, I will not add support for filename based binary detection...
at least not now!)
Richard.