Carbon nanotubes

I'm not so sure it is "a ways out". Lasts weeks EE Times had a good article about several IP vendors and one will have product this year. "Cavendish Kinetics is introducing its cantilevered-beam approach this year initially for electroic fuse components in analog and mixed-signal circuits. That will be followed by a one-tim-programmable memory for embedded applications and then a many-times-programmable variety."

I would expect this would make a great FPGA configuration memory technology. It is 10 times smaller than an SRAM cell, not affected by alpha particles (the article did not say about higher energy radiation) and non-volitile. They don't say what size CMOS process they are working with, but they indicate it should be scalable down to 22 nm.

I emailed them today. I'll be in Amsterdam next month and might have an opportunity to visit. Sounds interesting.