Nice thought, however...

New gadget to make theft of mobile phones harder
Thu Oct 13, 2:42 PM ET
Finnish scientists have invented a device to make it harder to steal mobile phones and laptops by enabling them to detect changes in their owner's walking style and then freeze to prevent unauthorized use.
The VTT Technical Research Center of Finland said the device, which is has patented but has yet to sell, could prevent millions of portable appliances being stolen every year.
"A device is equipped with sensors that measure certain characteristics of the user's gait. When the device is used for the first time, these measurements are saved in its memory," VTT said in a statement.
The gadget would monitor the user's walking style and check it against the saved information. If the values differ, the user would have to enter a password.
"Compared with passwords and traditional bio-identification, the new method is simple: confirmation of identity takes place as a background process without any need for user's intervention," the researchers said.

One problem I see with this is that as some one is being chased or, is thought be being followed, your gate changes, you go from your normal la de daa, mode to a defensive mode. I wonder if the phone would still lock and prevent you from calling for help? Hmmm, I will need to see more data. I still think a fingerprint scanner would be a better option on the phones, some computers are putting them in.

- TV