What that will allow you to do is connect your phone to your laptop via a cable you will have to purchase separately and, as long as you're within range of the Mobile Broadband Rate and Coverage area, access the Internet.
The nursery also uses interactive whiteboard technology and has broadband access to the internet.
One unique feature of Mapquest is that if you have a broadband card and access to the Internet wherever you go, then you'll be able to update your route at any time while traveling in the air card's range.
If you don't have a broadband connection hooked up to the system, you can download them to your computer, save them to an SD card or USB device (flash drive, mp3 player), which you then can transfer to the PS3.
Early phones that were dedicated to VoIP service only came in a standard candybar form factor and most required connection to a base station that was, in turn, physically connected to a router or broadband modem.