Florida . . . but the time it takes to process the order it might as well be outside the US. I suppose it's a sgn he's doing well, and more power to him, but he's alos loosing sales becasue I can get this or that part from somewhere else and have it in hand before his even sees it's packign box -- there have been stories of Swiss-post from HK beating his orders in
When people talk about the "FLIP" board, they're generally talking about the Flip1.5 -- capable, with simple sensors, but a slow processor. The 2.0 adds a basic barometer and magnatometer, the 2.5 adds a better magnatometer. all of these, becasue of the low end processor, will need a nav board to integrate a GPS -- it's just too much for the 328 processor to handle reliably. The Flip EZ is the flip 1.5 with etter edge connectors, instead of through-hole headers.
Going to the Pro boards, you get a full suite of sensors and a atmega processor -- a fair step up. It'll support the GPS directly, and they don't fly bad at all. the small one simply has a smaller layout of the mid-range board, the low range board has older sensors, and the high range board has better edge connectors and a few more I/O pins brought out to holes -- those I/O ports in particular could be handy.
The 32 boards are a step up to a nicer processor still, but haven't seen much advantage from them over the mega boards (happy to be proven wrong, though)