It's no CushionSpeaker, but Logitech's $30 Portable Lapdesk N315 is just as curious and probably as useful. Designed to help those sick and tired of mousing about on the built-in trackpad, this laptop table is engineered to grip tightly to machines 15-inches and smaller and provide a pull-out tray that doubles as a mousepad. It's like having a desk, but on your couch. Get it? Get it?Gallery: Logitech's Portable Lapdesk N315 takes a stand against carpal tu
