Millions of small businesses operate out of corner coffee shops using just a notebook and wireless access (and a LOT of espresso). How are new Web 2.0 applications and services making it better (or worse) for small business owners to operate online? Has the browser really become the operating system? And where can I find a good $2 espresso? These and other burning Web 2.0 questions will be answered by our esteemed panel of wireless web warriors.