COMMUNAL BROADBRAND Neighbors sharing high-speed Internet access via wireless networks is popular and controversial Sean Berry shares his broadband Internet connection with three neighbors - - including one across the street -- but doesn't have any wires running out of his windows or doors. And in return, his neighbors sometimes pitch in to help pay the monthly $80 DSL service fee. "There's no formal money that changes hands. I'm not looking to make any money on it, but they do chip in every once in a while," said Berry, a 27-year- old Unix systems engineer who lives in a one-bedroom apartment in Menlo Park. "It's about the same rate as people chipping in for pizza." With the cost of rigging local-area, high-speed wireless networks plunging during the past couple of years, some tech-savvy Bay Area neighbors are finding economies in sharing broadband Internet service. The movement is rubbing at least one broadband service provider the wrong way. click for entire story --