21 coolest apps for the Apple iPhone

So, you’ve got a gleaming new iPhone 3G. After you make a few calls to tell your friends, snap a few pictures, and try out the Web browser, it’s time to load that thing up with software. After all, this device lets you go way beyond the usual calling, texting, and surfing.

Apple’s communicator extraordinaire knows how it’s moving in space, can tell where it is on the planet, and lets you control it with multi-finger gestures. Few desktop computers give programmers as many possibilities, and developers have responded with hundreds of applications. The 21 apps we’ve collected here will transform your new device into far more than a phone.