Seperable mobile phone
The Separable Phone is a concept device from NTT docomo billed as the 'world's first handset that separates into two functional units'.
The detachable keypad can be put to multiple uses, such as a game controller, or as a remote control for the phone's camera or on-board projector. You can even use it to tap out your notes while chatting on the phone, for those 'multi-tasking yourself to death' moments.
Source: tech.uk.msn.comAdded: 31 March 2010