I don't know if anyone else keeps track of such things but there is a UK
eBay seller foxbatslayer89 who is selling 94 2600 cartridges, including
several current homebrews (all described as rare or very rare).
Unfortunately, none of them have pictures, so I can't say whether these are
AtariAge, PackRat, Hozer or something else. I have sent a note to the
seller asking for a picture or description of the label. (It might just be
someone's collection, though the manual isn't included, which makes me
suspicious.)
For those interested, I simply set up a favorite search (Atari Skeleton,
worldwide) in eBay and have it email me any matches. See
http://pages.ebay.com/help/confidence/vero-rights-owner.html for what to do
if you do find something unauthorized. The only other one I have found was
someone selling a multi-cart, and the auction was cancelled after I sent an
email.
