Talk isn't cheapTwitter binging comes with a price, as Jason Calacanis discovered Sunday. The Weblogs Inc co-founder, now a Sequoia Capital "entrepreneur in action," racked up a $236.70 bill on his T-Mobile plan for having the chatty "microblogging" service send 2,367 status messages to his cellphone. Maybe there's a business opportunity here for Evan Williams' Twitter — teaming up with T-Mobile to reach the market of savvy entrepreneurs who have trouble choosing the right cellphone plan. The ultimate irony? Calacanis couldn't stop himself from posting to Twitter about it. Sunday he returned to the service to report one more update to his status. "Crushed by twitter bill." DC