Security researcher Pod2g has discovered a flaw in the way iOS handles SMS messages that could conceivably allow for malicious texters to disguise messages as being from a known or trusted source, potentially getting users to reveal information they normally would not, or rack up inadvertent charges on their bill. Pod2g refers to the flaw as "severe" and plans on releasing a tool to allow iPhone 4 users to send messages in "raw" PDU format until the vulnerability is fixed.
