Like Jott? Here's SpinVox.
Not free, but out there: SpinVox (http://www.spinvox.com/spinvox_for_you.html) is another voice-to-text messaging system for those of us who want to dictate into the phone and have it appear in an email or on a blog as text. It broadcasts group text and mail messages as well...so explore this if you are a Jott fan and have some money to burn!