Posts By: Gary Rosenzweig

You can control a Keynote presentation on a Mac with your iPhone, iPod touch or iPad using the Keynote Remote app. But this requires that both the Mac and iOS device be on the same wi-fi network. In cases where you don't have a wi-fi network, such as a presentation hall or classroom, you can establish your own local network using your Mac, and connect to it with your iOS device. This allows you to control the Keynote presentation directly from your device to the Mac.

In your Mac's Applications folder you've got a Calculator app that you probably haven't given a second look. This is much more than a simple utility. You can use it in scientific and programmer mode, convert units, time and currency, work in octal and hexadecimal, produce a tape of your calculations, and even get it to talk to you.

Learn how to add keyboard shortcuts to your iPhone, iPod touch and iPad. Keyboard shortcuts can make it much easier to type using the on-screen keyboard. You can substitute short groups of letters for longer phrases, like 'em' for your email address or 'icu' for 'I'll call you later.'

Keeping your Address Book contacts in a good state is even more important now because of integration with iCloud, iOS 5 and social networks. There are several fields in Address Book that are more than just bare information. Learn the special properties of the birthday, nickname, phonetics and URL fields.

While Siri has brought speech commands to the iPhone 4S, Mac users have long had the ability to speak commands to your computers. Learn how to enable Speakable Items on your Mac, find out which commands work and how. You can also add custom commands and have your Mac speak to you.

iOS 5 for the iPhone, iPod Touch and iPad has a great set of accessibility features that can be useful for just about anyone. You can zoom in on the screen, change the font size for some apps, have your iPhone speak text on web pages and in documents, use multi-touch gestures with just one finger, and even set custom vibration sequences.