Unless you're pasting code. Check out my trivial example: http://www.marked.cc/4f9766f05e69190001000017

It does support code snippets you just have to use fenced code blocks ala Github style.

``` x = [] ```

^^ this is exactly why the carrier lock is bullshit. Then again, most carriers will give you unlock info if you're headed overseas and have been with them more than a few months.

Not AT&T, unfortunately. They're just starting to unlock at end of contract, but as far as I can tell won't unlock for overseas travel. And AT&T has sold most international-cable phones in the US, by far.