Samsung has announced the availability of TecTiles, basically a programmable beacon that your phone can read to activate certain functions.

A TecTile can be read by any NFC (Near Field Communication) enable phone, like the Samsung Galaxy SIII. You hover the phone over the tile and it reads its identity thus activating a specific application.

You can place one of these in your car dashboard. Once you board the car just hovering your cell phone on it may put our cell phone in car mode, activate the bluetooth communications with the car and possibly signal to Facebook you are now driving or create a Tweet.

You can buy 4 TecTiles for 15$ and the application to program them (and your phone) comes free.

I guess we can expect plenty of preconfigured sets of actions to become available so that what you just need is to download the one you like. It is a quite new way to interface with the world and to adapt your cell phone to it.