Just to clear up the resolution issue that was previously mentioned......
VGA is 640 x 480 Pixels
QVGA is 320 x 240 Pixels
FLIR E4 upgraded to E8 is 320 x 240 thermal Pixels and is a true optical QVGA Camera.
The LEPTON core in the FLIR One is 80 x 60 thermal Pixels and does not appear to be a hobbled 320 x 240 micro-bolometer so will not be hackable to QVGA.
In thermal imaging circles QVGA is actually considered high resolution but there are 640 x 480 true VGA thermal cameras and higher resolutions available if you can afford the really scary RRP, and can obtain the required IATA licences to purchase
Sadly, for me, the FLIR ONE is a bit of a toy for the well healed iphone owner. I have no issue with it as a product though as it opens up the market to thermal imaging which was beyond most consumers pocket until recently. This can only be good if it increased production of such technology and reduces costs. I am more interested in the thermal CCTV camera that FLIR may be releasing. 80 x 60 pixels is a real issue for me though. If the LEPTON core were 160 x 120 pixels at the same projected cost, it would be a killer product, as even with a 9 fps refresh it would be perfect for UAV experiments and security applications.