It's the inevitable street encounter in a metropolis tethered to portable electronic devices: The meandering businessman typing a text message on his BlackBerry, the chatty cell phone user coming to a dead stop on a crowded sidewalk and the iPod listener obliviously crossing a street as the light changes.Technology has allowed New Yorkers to go mobile with their media, but it has also put their legs and minds on automatic pilot.Now one lawmaker wants to put an end to this aspect of modern life. Legislation proposed by state Sen. Carl Kruger (D-Brooklyn) would fine pedestrians and bicyclists if they use their MP3 players, cell phones or other devices crossing city streets."You can't be fully aware of your surroundings if you're fiddling with a BlackBerry, dialing a phone number, playing Super Mario Brothers on a Game Boy or listening to music on an iPod," said Kruger, who called it "an avoidable tragedy."Under the legislation, anyone crossing the street while using an electronic device would be issued a summons that carries a $100 penalty.New Yorkers yesterday said that electronic devices have become distractions."It happened to my friend the other day," said Shawn Mullins, 21, of Flushing. "He was talking on his cell phone and looking the other way, and some guy came zooming by and almost hit him."Though the city Department of Transportation does not track reasons for fatalities, pedestrian deaths have been on the rise. Citywide, there were 170 pedestrian fatalities in 2006, an increase of nearly 9 percent from a year earlier.City advocacy group Transportation Alternatives said the proposal targets the wrong people. "It's blaming the victim," said Paul Steely White, executive director. "IPods and Walkmans don't kill pedestrians; reckless driving kills pedestrians."