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Cell phone are chock full of functions that must be disabled by the phone company (i.e. Nokia) to sell their products via the cell phone companies (i.e. Cingular). For example, cell phones have WiFi. Setup your phone and every laptop in the room can have high speed internet access. That function has been disabled (but it will work if you cell phone was originally purchased in Europe).
Another function also disabled would keep a running total of your minutes. Cingular also demanded that function be disabled so that you will not know how much phone time remains.
GPS is also in cell phones. Push a button. Then walk to another point. Push a button again. Now you have measured the distance.
GPS tied to a database works just fine on cell phones. But again, some cell phone companies want the function disabled - a free function only enabled when you use only their GPS service.
Cell phone is expected to even replace the credit card. But again, the 'powers that be' fear innovation just as the RIAA feared music downloading. Welcome to a world chock full of options - but you cannot be trusted to know those functions even exist.
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