AT&T’s Text Messages Cost $1,310 per Megabyte
techcrunch.com
techcrunch.com
So, 1MB of SMS costs $30/mo on AT&T. Unless it's a slow news day and we extrapolate from the worst-case scenario.
Most people who are of a legal age to sign a cellphone contract generally understand that pay-per-use scenarios like this are rarely the best way to go.
Ah yes, was an article about data being more expensive to text than to send to the hubble: http://www.physorg.com/news129793047.html
In any case, a google for sms megabyte turns up a ton of hits for this, most of them at least 6 months old.
Good job TechCrunch!
(is that sarcasm I smell?)