MEMS - nanotechnology is happening. 
I picked this interest up from an 
I, Cringely article (one of 
Jimlad's favourite sites - good work fella!) and had a look round for a bit more info. There's plenty out there, and it's interesting reading (if a bit sinister in places - too many miltary applications mentioned). Check out the 
pictures though. 
We'll all be assimilated one day.......