I've had some time to play with Ribbit, and it's pretty cool. I used the sample apps provided to place and receive a couple of test calls, and also play with the messaging features.
I like that every time someone leaves me a voicemail message, Ribbit sends me an email with the caller ID, length of the message, and a text transcription of the message.
If the caller is someone in my Ribbit contacts list, it provides me with lots of other information including a picture or "avatar" of the caller, depending on what I have set up.
And that's just the beginning. There's a wealth of other information that I can access in the Ribbit database... I am just looking at the tip of the iceberg still!
Want to help me out? Leave me a comment and I will send you my Ribbit phone number so you can give me a call! ;)