Right now flash memory is everyone's darling. It does have a =20 drawback... it wears out after repeated writes. We do want the non-=20 volatility that flash has. I have heard of some possible replacement technologies. PRAM ( phase change random access memory ) http://en.wikipedia.org/wiki/P= hase-change_memory Memristor http://en.wikipedia.org/wiki/Memristor ReRAM MRAM http://en.wikipedia.org/wiki/Magnetoresistive_Random_Access_Memory What is likely to be the near term replacement for flash ? Gus --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .