I've never heard of these guys before. I wonder why they never sued Hasbro over Classics Jetfire. Seems to me like if they have a problem with a GI Joe toy with a back pack in it they should have had a problem with Classics Jetfire also.
Hasbro said several Bot-cons ago that they were going to bring the hammer down on the 3rd party guys like Fan Project. Nothing ever came of it.