Escluderlate is a Java game for mobiles and portable devices (J2ME). The scope is surviving inside the arena more than the computer controlled opponent(s). You have to avoid crashing on the walls that each player leaves behind. You can move your pointer using the arrows, or the keys 2(up), 4(left), 6(right), and 8(down). Escluderlate contains 21 different levels and 3 different speeds, but it's easily extendable.
MiniPauker is a flash card based learning application for mobile devices and handhelds. It is based on the leitner cardfile system and is compatible with Pauker (http://pauker.sf.net, the desktop version of this software). MiniPauker uses a combination of ultra-shortterm, shortterm, and longterm memory. You can use it to learn all the things you never want to forget any more, like vocabulary, capitals, and important dates.