iPhone or O2??

Apple - iPhone

iPhone combines three amazing products — a revolutionary mobile phone, a widescreen iPod with touch controls, and a breakthrough Internet communications device with desktop-class email, web browsing, maps, and searching — into one small and lightweight handheld device. iPhone also introduces an entirely new user interface based on a large multi-touch display and pioneering new software, letting you control everything with just your fingers. So it ushers in an era of software power and sophistication never before seen in a mobile device, completely redefining what you can do on a mobile phone. Apple - iPhone

O2 XDA Atom

Immerse yourself in the supremacy of the Xda Atom, the world's smallest multimedia PDA-phone.The epitome of power and performance, it is power-packed with cutting edge features such as O2 MediaPlus, Windows Media Player 10, 2.0 Mega Pixel Camera and Microsoft Windows Mobile 5.0.
Compact, lightweight and aesthetically pleasing to the eye, the Xda Atom is a true complement to your distinctive sense of style. Weighing a mere 140g, its highly ergonomic form is further accentuated by the brilliance of its 262,000 colours QVGA TFT-LCD touch panel-enabled display. Adding to perfection are the sleek stereo speakers, omni-directional mono microphone and user-friendly navigational buttons.

O2 Xda Atom - Overview

don't know whether which one to get.. haiz..