Walt Mossberg answers questions about managing battery life on the iPhone 3G, replacing its battery if necessary, and upgrading an iPod Touch.
The best feature in Apple's second-generation iPhone 3G is the "App Store," a distribution mechanism for third-party programs. In general, the process of choosing and downloading apps is easy and quick, and most of the programs are useful or entertaining. Here's a guide to choosing the apps for your iPhone.
After a week of intense testing of Apple's new synchronization service MobileMe, Walt Mossberg says he currently can't recommend it. It's a great idea, but, as of now, it has too many systemic flaws to keep its promises.
Shutterfly has integrated simple photo sharing into personalized Web sites. Overall, this site-creating program does a nice job with minimal work on the user's behalf, though it lacks a few useful features.
Walt Mossberg answers readers' questions about sending video files without YouTube, buying a MacBook for an art/graphic-design student, and choosing a reliable antispyware program.
Xobni is a new, free plug-in module for Outlook that has some flaws, but Walt Mossberg finds that it turns the email experience from one that was organized by messages and dates into one that is organized by people and relationships.
We tested Meebo, Adium and Digsby, free instant-messaging programs that work by being a one-stop shop for online communication. All three are straightforward and work without much effort or instruction.