> 1) Programming infrastructure support. ic-prog claims to support the 18F's, so just about every 'simple' programmer design should be a ble to do the 18F's (provided that it works in the first place) > 2) Software infrastructure support. Jal definitely does 18F, but not as efficient as it could be. But definitely useable (I use it a lot) The C18 compiler from Microchip is expensive, but the time-limited demo is free (and can be re-installed :) > 3) Tutorial/Example infrastructure. Not much yet that I know of. If I find the time (not likely :( ) I will expand the range of Dwarf Notes. But not that the 18F's lack some problems that make the 12 and 14 bit cores hard to use, so they need less hand-holding tutorials :) > 4) Silicon issues. Not running at the full 40 Mhz, PLL No real issues that I know of for the 18Fxx2 series, which I consider the first choices. Wouter van Ooijen -- ------------------------------------------- Van Ooijen Technische Informatica: www.voti.nl consultancy, development, PICmicro products -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.