My head is full of mobility, and that’s a good thing. But sometimes juggling all the technology can be a bit overwhelming.

In one pocket, you’ll often find a new Apple iPhone 4, newly upgraded to iOS 4.1. In another pocket, an HTC EVO 4G handset that runs the Android 2.2 operating system. A Kindle e-book reader from Amazon lives in my briefcase. And at home, there’s an HP netbook running Moblin Linux on the kitchen counter, and a WiFi-equipped iPad in the living room.

(And that’s not even mentioning an out-of-date BlackBerry sitting in a charger. I don’t use that one very often these days. I suppose it’s time to get a new one.)

Why does Alan have so many mobile devices? If you answered, “Because he’s a total geek!” well, you’d be right. I love my technology toys. And while new software is fun to play with, nothing (nothing!) beats the thrill of mastering new hardware.

Another reason to have all these toys is because, well, SD Times readers are building applications for mobile devices, and it’s important to have hands-on familiarity with them.

Many of you are familiar with our iPhone/iPad Developer Conference, coming to San Diego at the end of this month; we recently announced an Android Developer Conference, March 7–9, 2011, in the S.F. Bay Area.

A few months ago, we developed our first mobile application, and many people have downloaded and are enjoying the free SD Times Newsreader for iPhone.

I’m now proud to share our new SD Times Newsreader for iPad with you. It’s available for free from the Apple App Store. It’s a whole new codebase, and a totally different reading experience, than the iPhone app. Check it out, and let us know what you think at feedback@bzmedia.com.

And now, hmm, which mobile device should I play with next?

Alan Zeichick is editorial director of SD Times. Follow him on Twitter at twitter.com/zeichick. Read his blog at ztrek.blogspot.com.