Well, since it got booted off eBay, which is absolutely ridiculous since it comes with no roms and is TOTALLY legal (don't get me started), I have a GBA Flash Linker plus 64 MB Cart for sale.
It's the first generation version, works perfectly, and will be good play in collection for you. Sorry, got a bit Zero Wing on that description for you. It'll move your zig too.
Anyhoo, I hope I'm not breaking Digital Press rules posting this here, as it comes wtih NO commercial roms. Please, eBay can go suck it as so many people have exploited their service, but IMHO developers and homebrew"ists" are getting the shaft.
If you have something nice for trade I'd consider that too. Looking for $75 via PayPal. PM me if interested.
Peace through gaming,
://chip.