Consuming XML Web Services in iPhone Applications
Find out the various ways you can call web services and parse responses from your iPhone applications to give your applications a huge range of data sources.

iPhone Programming: Displaying Data with the Table View
Find out how to use the flexible iPhone Table View, which does double duty to display data in a table or a list, both with and without graphics.

Building Location-Based Applications for the iPhone
Knowing where a device is opens the door to all kinds of innovative applications—and the iPhone's Core Location framework makes discovering location simple.

iPhone Programming Fundamentals: Understanding View Controllers
Find out how to use view controllers to handle switching views, animating transitions between views, and passing data between views.

Get Internet Connectivity for Your .NET Mobile Device Emulators
To get Internet connectivity on your .NET mobile device emulators, you'll need to install some additional code.

Using JavaFX Mobile to Combat Device UI Fragmentation
JavaFX 1.1, a powerful tool for building rich UIs across a multitude of clients, provides mobile emulation for developing JavaFX Mobile applications. Get a beginner's guide to JavaFX Mobile development.

Using and Implementing Content Providers in Android
Although Android ships with several useful content providers, you can easily extend it and build your own.

Using the Cellular Emulator in the Windows Mobile 6 SDK
Testing your Windows Mobile app just got a lot easier! Learn how to set up both Windows Mobile 6 Professional and Standard emulators and work with the Cellular Emulator.

Book Excerpt: Programming in Objective-C 2.0
Though Objective-C's most popular use is for development on the Mac OS X and iPhone platforms, this object-oriented language can be used on many Linux, Unix, and Windows systems.

Developing a NIO-Based Client
As you probably know, New I/O offers many advantages such as speed and the ability to maintain a large number of concurrent connections.