Ringtones — They are the darlings of the music industry and the bane of anyone subject to hearing a bad one. If you’re sick of your plain old telephone ringer but don’t want to download a canned tone, you don’t need to spend extra money to turn your favorite song into a ringtone for your iPhone. There’s a way to create ringtones in iTunes from your existing music.
Once you’ve done it, you’ll be making ringtones faster than you can download them. It is not, however, the most obvious process. Here’s a how-to guide to help you out for both Mac and Windows (Windows) users.

See how your development application will perform in a
real-world environment by installing and testing it directly on iPad, iPhone, and iPod touch.
Test in Real-Time Plug in your iPad, iPhone, and iPod touch to use Xcode’s graphical debugger, or collect real-time performance data in Instruments’ timeline view. These powerful optimization tools allow you to quickly identify and address any performance issues.

People have been dreaming about video calling for decades. iPhone 4 makes it a reality. With the tap of a button, you can wave hello to your kids, share a smile from across the globe, or watch your best friend laugh at your stories — iPhone 4 to iPhone 4 over Wi-Fi. No other phone makes staying in touch this much fun. One-tap simple. FaceTime works right out of the box — no need to set up a special account or screen name. And using FaceTime is as easy as it gets. Let’s say you want to start a video call with your best friend. Just find her entry in your Contacts and tap the FaceTime button. Or maybe you’re already on a voice call with her and you want to switch to video. Just tap the FaceTime button on the Phone screen. Either way, an invitation pops up on her iPhone 4 screen asking if she wants to join you. When she accepts, the video call begins. It’s all perfectly seamless. And it works in both portrait and landscape modes.