OK this is a New York story but I have heard the same nationwide. Starbucks is trying to get rid of the laptop campers who sit for hours in their stores sucking up wifi and electricity.
I have been one of these moochers myself on occasion and always try to buy something every hour or so. The Caribou at 14th & Rhode Island has its own virtual union of telecommuters. I have to say I like the status quo but agree that maybe they need to start and hourly minimum of a cup of coffee or something.