I just got a 700bt used. He said it was running 2.08

What are the benefits of running 3.0

Thanks

The benefits of 3.0 are posted all over this forum. In my experience, the best things about 3.0 are the touch screen response and the better maps and map graphics. I bought mine at the introductory price of $68.60. $120 is a little steep, but for the touch screen response it may be worth it to you. Your call.