If you are using your Android as much as I do, you have it close by all the time. So why not learn something while you're looking at it? Our friends at px0. De have created a screensaver of the 100 most frequent Chinese characters, their pinyin and the corresponding translation! This way you will be reminded of a character (or learn a new one!
Download the installation package of Chinese Character Screensaver 1.0 free of charge and read users' reviews on Droid Informer. The app works flawlessly on Android 2.1 and above. The download of this application is 100% safe. Great Bytes Software developed the tool that falls into the Educational category.
Chinese Character Screensaver has been downloaded and installed by over 1K users and the most recent update was released on Dec 2, 2012. The app has been rated 4.4 on Google Play.