If you have a cellular phone with two SIM cards and is not
enough, the Trizone is a good choice. As its name implies, this device has
three slots for SIM cards that offer connectivity support quad band GSM.
In addition to allowing users to use three different numbers
for three different purposes, this device features a full QWERTY physical
keyboard and a 2.0-inch screen with a resolution of 480 x 320 pixels.
There is a microSD card slot supporting up to 2GB, a 0.3
megapixel rear camera, chipset MTK6225 and a battery of 1000mAh.
Chinavision offers Trizone unlocked at a price equivalent to
about 30.45 euros.
Source: Gadgetfolder