Seperate LED colors to identify different callers
Agilent Technologies has set up the industry's thinnest top-firing tricolor surface-mount LED (light-emitting diode). It was intended primarily for backlighting and status indicators in ‘ultrathin’ feature-rich mobile phones and PDAs. In handsets and other handheld devices, separate colors can indicate incoming text messages, e-mail and stock news. This materialized concept can also help you identify different callers. You can set up blue for your girlfriend's(or boyfriend's) calls, red for your second(...), and orange for the ex wife(or husband). Improving your visual memory! That's an activity you might consider after misusing these colorful things.
[via Electronics Talk]