The optical sensors built directly into the LCD surface detects changes by the pixel. Input is sensitive enough to allow complex multi-touch gestures and can also perform scanning functions; a future device could include a business card reader tool or automatically scan data codes found on packaging, Sharp says[…] Thanks to CLIFFosakaJAPAN for providing this nice story on Digg.
What other users say about this:
Kakcoo: Yeah. Only iPhones can have this.