I don't have too much info on the process, other than freeze the beer, and skim the surface to get the alcohol-thickened portion of the beer to get the more concentrated version of the brew. I am planning on freezing 4-6 and then re-bottling in a newly labeled Iced 120 Minute IPA bottle with DaveDave caps. I am planning on having two total, maybe three to drink. If I achieve a high percent efficiency in doing so, I can effectively create a 30-38% beer from this process. sick.
here are also some pics of DaveDave caps and snifters that have been made:


these aren't exactly how they look; in fact the caps are all-black, and the snifters are etched, so the davedave logo and "screw it, let's brew it" mantra are a hazy white color. still killer.