"When sending SMS messages in this manner, users don't have to pay SMS charges levied by their mobile carriers because the SMS messages are sent by Google." Th

"When sending SMS messages in this manner, users don't have to pay SMS charges levied by their mobile carriers because the SMS messages are sent by Google." This could be a major blow to the profitability of texting. I'll probably drop my AT&T plan (I think it's a thousand or so texts a month) when the iPhone app launches.