Sgt_Kickaxe - 4:46 am on Sep 13, 2012 (gmt 0)
Ask a few close friends to look over your source code and to see if they can spot anything too. Document your efforts and then file your reconsideration report, it's all you can do.
My best advice is to file it and forget Google, keep working on your site and let Google straighten it out. Don't stress afterwards.
Something to look for that might not be obvious, that I have seen cause a similar problem before, is a flash file or flash game. These, for whatever reason, can confuse Google when embeded with links to another site. I have one site that when I perform a site command a url to a site that is not mine appears and it's a link to a flash game (on someone else's site) that I happened to have hosted on my server for my visitors (with permission). Google thinks the other site url belongs to my domain because of the flash file!?!