Thanks for the feedback folks. It was quite helpful.

I forgot about the inability to zoom, and the hardware is too
temperamental from what you folks are saying. The product is only
half-baked, and priced as though it's fully featured. It doesn't even
begin to serve VFR pilots, so I'll pass for now; unless I get an urge
to write my own software.

Please post back if iRex makes any significant progress in later
versions (assuming the firmware is flashable).

--
PM instructions: caesar cipher the alpha chars in my addy (key = +3).