Can’t use the new “multitasking” finger-swipes on your iOS 4.3 beta iPad? That’s probably because you updated your iPad in iTunes. You have to restore it in Xcode’s Organizer and click “Use Development Mode” to get the new four and five finger-swipes. You need a valid iOS SDK developer account to do this, it’s not enough to have the iPad’s UDID registered with someone else’s dev account. Read more »

To use Apple AirPrint on an iOS device like the iPad or iPhone you either need an AirPrint enabled printer or a printer that’s connected to a Mac. Here’s how to use a printer that’s connected to a Mac. In order to be seen by any iOS device, the printer needs to be shared on your local network. Go to System Preferences -> Sharing and activate the checkbox for “Printer Sharing”. Click the “Open Print Preferences” button. In my example, I’m going to share my Lexmark C530 laser printer. Read more »