Common with tomtom handhelds and many in-vehicle navigation systems. I use it constantly with my TomTom. And when I am traveling I might program that remote hotel, that I have finally found after searching a long time as my “home”. Now when I do day trips, go to a restaurant in town or so I don’t have to remember my hotel address or even search in “recent places”. Just press “take me home” and off you go…
Available with version 5.9+ software. Press and slide down the navigation button to have it route to home.
I can see the convenience of a "my temporary home" button (for your hotel, etc), and for a "my permanent home" also, for that matter. The last one, though, is convenient for thieves also, making it easy to go to a house where nobody's home. ;-) Of course, those of us that are paranoid about that particular scenario would just program the home button to the nearest police station, so I'd welcome the Home-button on the GPS. :-D