Smart! The Idea of EOS-M is to have a SMALL kit. Some posters here seems to be doing the opposite. They are building up a big system around the tiny EOS-M. If that is the case, they might as well bring their FF DSLR kit.I think I will hold off the EF-EF-M adapter.Amazon had it for $60 a few weeks back and I ordered but later canceled it. I can't ever see myself using the adapter - the whole idea (for me) of the M is that it's tiny. Adding the adapter and my L glass would make it ridiculous. I carry a 5DIII (or 1D X depending on the shoot) as a back up body, but for those who carry the M for that purpose, I could see the purpose of the adapter.
It's an individual decision. While I personally favored the idea of a compact camera staying compact, I am more than willing to listen to the rationale of very smart and experienced people going the other way.
The Franiec grip, by the way, looks very nice but almost double the price of the ebay one. Worth it I am sure, but I am cheap