How to find a lost mobile phone

Useful Thing
A mail from one of my friend:
Experience makes Men perfect. Here is the story.
We have been getting several forwarded mails about getting the International Mobile Equipment Identity (IMEI) number of a cell phone and we used to forward the same to n number of persons but we are ignorant about this, and it costs me a lot now. Some one flicked my Motorola V551 Mobile from Hotel Snows Park in Velacheri on last Friday. When I contacted Local Police they redirected me to a newly Started "CYBER CRIME CELL" which is located in Egmore. I sent a mail to the ACP Mr. Balu and with in a day they responded back asking for IMEI number, unfortunately i never bothered to save that info.
Now Chennai Police is able to track down the cell phone with the special software they have if you give the IMEI number. They can track the cell even if they change the SIM to any other one. This was the first time i felt like a fool in front of them for not having this IMEI information.
So here are the tips. Please make a note of your IMEI number now itself. You can find it in the battery compartment or by keying in *#06#. And if your cell is lost please contact "CYBER CRIME CELL" with the IMEI number at the following Email addresses.
cyberac@rediffmail.com baluac@vsnl.net
Here is the address.
S. BALU,
Assistant Commissioner of Police,
CYBER CRIME CELL,
Central Crime Branch,
Egmore,
Chennai - 8.

Also this will prevent the misuse of any data in the cell phones.