This is a neat idea that probably isn’t too new. Nevertheless, Philips has unveiled a concept product that is essentially a large mirror touchscreen intended to be used as a message board for families and offices.
The device displays thumbnail avatars of its various users. One simply clicks the user you want to leave a message for and the board allows you to either write a note with a stylus or you can record a video message with the board’s included camera and mic. It can also receive MMS and SMS messages in case you need to send a last minute message that you’ll be late for dinner. Cool stuff.