We’ve been seeing a raft of small touchscreen devices patterned after the iPhone — no keys, only a sensitive surface. Nokia has patented “lids” to place over touchscreens with cutout areas for specific applications. That is, a circular cutout could permit blind users to control a device like an iPod; a grid of cutouts could be a keyboard, etc. The lids may be integrated into the device so that they slide easily into place.
Nokia patent app envisions touchscreen input lids – Engadget Mobile
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