Apple had released iPhone OS 3.1 Beta2 for developer. Not sure what changes made on it but at least it shows that the current OS 3.0 has some issues not addressed.
BTW, do you know that if you SMS to more than 1 person, the other parties will receive your message in MMS format. That happens to my friends on different iPhones that were upgraded to OS 3.0. Do you have such issue?
Click Here to Go to Apple iPhone Developer Site
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