DIY LTCC or similar system for LT1s

[spfautsch]

Just to try and catch up, is the goal here to ultimately piggyback the optispark signaling with the OEM wheel?

I'm wondering if the arduino platform might be capable of this. I'm somewhat reluctant to bet the farm on a microcontroller like the Atmel 328 in the thermal and EMI environment encountered under the hood, but is it even fast enough? 360 rising edge signals per 2x (edit: crank) revolutions, right? Also, what would "limp home" look like with something like this - the ECM can function quite satisfactorily without the high res signal. (edit: perhaps the second half of this sentence should be phrased as a question)