Enyo is an application development platform created by HP for webOS. It's open source and based on web standards like JavaScript. Best of all, it can be used to create apps for other platforms like Android and iOS.

The first Enyo-based app for iOS, FlashCards To Go, was unveiled last month when HP announced its timetable for releasing webOS to the open source community. Created by developer James Harris, the iPad title is a full-featured flashcards app that has a strong webOS look and feel. It's available for US$3.99 and works on any iPad running iOS 5. The flash cards app is also available on Android and both a Mac OS X and BlackBerry version are under development as well.