blnkstar, I thought GTP stopped offering it's firmware. If you have a free version could you post the hex? I'm here in Santiago, Chile and when I went to the Spanish site of GTP he says, "don't send me an email asking for firmware I won't send it to you." they used to sell the chip preprogrammed but I can't seem to find how or where to get it.
eleceng You can always build a Junebug, he sells a kit for about $50. The guy who designed it helps me all the time and I didn't even buy his stuff. I spent $10 buying the parts to build it.