The Apple iPhone 3G operates on iPhone OS 2.2.1. Well, you have guessed it correctly, this is the same OS that iPod touch runs on. Its based on Mac OS . iPhone 3G is powered with “Coreanimation” and “Power VR” to give you smoother graphics.

This phone is first of Sony Ericsson family to adopt Windows Mobile. Also, this phone packs Java virtual machine (JBed) and supports JavaME.

Blackberry Bold comes with built in GPS, bluetooth V 2.0, GPRS, EDGE, 3G & HRDS. Nifty, you might want to say. It has WI-FI access to keep you connected to internet wherever you go.