where i can buy unlocked cell phone?? here mostly phones are locked like my cricket locked cell phone...i need cell phone to bring and use in other country not here usa

These unlocked phones are perfect for International use. J & R has the Duet WG3 Quad-band Cell Phone- Unlocked for $159. The quad band feature makes it ready for use in other countries so that it can obtain signal. This unlocked phone features Dual SIM / Bluetooth / Up to 220 minutes talk time / 1.3 megapixel dual camera / 3.2" QVGA full touch screen and so much more. Comp Usa has  Motorola Rokr E8 Unlocked GSM Cell Phone - 2GB Internal Memory, Stereo Bluetooth Technology, 2 Megapixel Camera, Airplane Mode, Web Browser, Media Player - Black for $129. LG Incite 3G Unlocked GSM Touch Screen phone with WiFi, GPS, Music (CT810)m is on sale at Newegg for $139.99 with free shipping. These phones are all set and ready for use outside the US. All you need is a chip from the country you are in. I am always traveling and unlocked phones are really convenient and easy to use. 

If you plan on traveling overseas, you'll want to invest in a tri-band or quad-band phone that is able to communicate over three or four different frequencies.

The SIM card holds your phone number, contact list and other account settings. SIM cards can be swapped in and out of any unlocked GSM phone. So if you travel, you can buy a local SIM card with a local phone number and use it with your GSM phone however this won't change the frequency coverage of your phone.