> do any of these models suffer from life ON a keychain, in the > pocket, getting tossed, banged, slammed, perhaps heavy things on > them..can they take the physical realities of life as a pocket > accessory? From my experience, the Lexar Sport can. It has been on my keychain for over a year (almost 2 years really). It rattles about in my purse, at the bottom of my backpack full of heavy test books, had dropped countless times - on the ground, in the snow, in puddles, has been left in a hot car, in a cold car, and has worked flawlessly. Except for some of the ink being rubbed off it looks like new. I even left it in a rental car in Florida, it was dropped in my mail to my local library ( I have a library card on my keyring) and arrived home just fine.