Looks interesting, but I suspect the resolution is probably less than 64 pixels by 64 pixels. ..... Higher resolutions for civilian applications would get the government authorities upset as they wouldn't want the devices (i.e an iPhone has more computing power than an F22) ending on the tip of cheap lightweight IR guided missiles, cheap passive night vision imaging devices etc.
Well for a mere $2,999.00 we in the US
can buy a FLIR Scout PS-32 Thermal Handheld Monocular with
320x240 pixel resolution. Note however that there are
export restrictions, so it might be harder for you to order one from the UK. I see that Cabelas also lists this model in their web catalog.