Last month, for example, researchers at Harvard and Mitre Corporation reported the development of nanoprocessor “tiles” based on electronic switches fabricated from ultrathin germanium-silicon wires.
I.B.M. researchers have been pursuing so-called phase-change memories based on the ability to use an electric current to switch a material from a crystalline to an amorphous state and back again. This technology was commercialized by Samsung last year. More recently, I.B.M. researchers have said that they are excited about the possibility of using carbon nanotubes as an a partial step to build hybrid systems that straddle the nanoelectronic and microelectronic worlds.
They also mention HP's memristors which have been showing a great amount of promise since day one.
Edited by frickfrock999 - 3/1/11 at 8:29am