The iPhone is still the most popular mobile platform among app developers, though interest in Android is revving up, says a new study from Millennial Media.

Starting next year, Android will block sideloaded apps from unverified developers. If you're thinking this sounds familiar, ...

With claims that sideloaded apps are 50 times more likely to contain malware, Google is tightening restrictions for ...

Rejected iPhone app developers can still create touch-screen Android apps and for those that don't have a touch-screen Android phone, well, they're out of luck.

PhoneGap is a development framework that lets HTML and JavaScript developers build native mobile phone apps that take advantage of native capabilities of the iPhone, Android and BlackBerry.

Developers have had to write different apps for iPhones and Android for years. These tools aim to make cross-platform app development easier.

It might be that a smaller market with faster access translates into better profitability. Zoho offers a number of apps for iPhone, Windows Mobile, Android, Symbian, and Blackberry.

It's day 4 of a 5-day course on iPhone programming. As before I'll be sharing my observations from the classroom on how development on the iPhone compares to Android development.