Overall design, new OS, FaceTime and super hi-rez screen make a powerful combo. Last Thursday, Apple released its latest bit of hardware, the iPhone 4. Perhaps you’ve heard of it? After months of anticipation, the iPhone 4 is finally in users’ hands. Although many details were revealed in the Gizmodo leak in April, two months before Apple’s official announcement of the new iPhone at the Worldwide Developers Conference (WWDC) three weeks ago, the controversial unofficial sneak peak failed to give away all of the goods. Apple CEO Steve Jobs pretty much filled in the blanks at WWDC, but there’s no substitute for actually having the iPhone 4 in hand — even if it means waiting in a line of hundreds outside an Apple Store on launch day, as I did.