I've just finished editing a video that compares the performance of the low-cost IR Arrays I've tested so far (Omron D6T-44L-06, Panasonic AMG8832, Melexis 90620ESF-BAD):

          * if you open the video on YouTube, there's a 'Table of Contents'  in the "Description" field and you can quickly jump to any part of the video

On the TJ Gen0 prototype:

- I've made a minor change to the Dickson Charge Pump topology that I use in the Power Harvesting circuit (audio output channels are not wired in parallel anymore but  as separate clocks phase-shifted 180° 

          ---> This results in much better performance of the Power Harvesting circuit

          ---> Less ripple on the regulated 3.3V

          ---> More margin to increase the current consumption if necessary 

- I've experimentally changed the clock source for the Manchester encoded signal (the one carrying thermal data, sent by TJ's microcontroller trough iDevice's Mic. input)

         ---> Signal is not clocked locally on the TJ anymore (by microcontroller's internal oscillator) but obtained through sampling the two 180° phase-shifted sine waves (to double the frequency) outputted through the audio channels

                - all sampling is done in hardware by the microcontroller (by a combination of internal comparators, S-R latch and T flip-flop)

                - this should result in much more precise clocking and alignment to iDevice's sampling -> hopefully allowing me to further increase the frequency (at which the thermal data is sent - currently 8820Hz) without communication errors  

I've refrained from posting more technical details such as hardware schematics and source-code as I'm still experimenting (with somewhat radical changes) in the pursuit of squeezing the best performance out of this Gen0 prototype before settling on a design for the Gen1 prototype.