[css771]

Why not? Is there a difference in the actual chip? I thought it was just a trimming of the plastic around the chip.

[needcaffeine]

Nano sims are also thinner.

Source: http://www.gottabemobile.com/2012/09/12/dont-plan-on-cutting...

But it looks like you can hack it: http://www.idownloadblog.com/2012/09/14/convert-micro-sim-ip...