[runjake]

There's no point in adding Straight Talk at this time because official word (via their Twitter) is that they do not have nano SIMs and they have no (announce-able) plans to sell nano SIMs at this time.

Micro-SIMs cannot be cut down to nano-SIM dimensions and be used.

[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...