You can build AJAX functionality into custom apps to allow your phones to retrieve data from or submit data to the internet (just like programming for a website).
Whether it's for productivity, customer service, research, or to add a smile to your day, you can design your app to get that information and put it on the phone's display.
One of our demos is a weather app that uses api.wunderground.com to get and display weather information. A short form in the app lets you enter a zip code to see the weather in that area. It's a handy app, as well as a great example of a custom phone app that links to the internet.