What is an applet? If you have ever wondered, it might help to look at examples of the best applets available. In general, an applet is simply a small application and usually refers to a Java applet. On your computer, you will usually run these applets through a Web browser with the Java Virtual Machine (JVM) installed, but some phones come equipped to run them, too, opening up an array of possibilities for expanding your phone's functionality.
Java Applets For Phones
Opera Mini is a full-featured Web browser that brings the full power of the Internet to any Java-enabled phone. In addition to browsing the Internet, you can bookmark files, take notes and synchronize all your preferences with an online Opera account accessible from any computer.
Gmail Mobile gives you complete access to all your Gmail on the go and, if you have linked all your other e-mail accounts to your Gmail account, all your e-mail period. You can read, send, archive and search to your heart's content, all in a small, easy-to-use interface.
Google Maps can make any phone seem like a GPS device. Providing directions and nearly real-time triangulation of your current location, this handy applet is extremely powerful, though some older phones might have a hard time getting it to work properly.
Note: The applet's image can sometimes be tricky to install on your phone, but all you need to do is open the JAR file you've downloaded with an unarchiving utility. Inside, you will see a list of files, at least one of which should be the image file for the Java applet's icon. Place this in the correct location on your phone using a program like BitPim, and it should show up when you restart your phone.
Finding Java Applets
Although Java Applets for your computer are most likely transparently integrated into a Web site you visit, some stand-alone applets can be useful. JARS.com has not only a comprehensive catalog of Java Applets but also a detailed rating system that provides a comparative assessment of any applet posted to its site.