Flight Navigation Planner lets you make flight plans based on known airports, navaids, fixes, or cities. You can use the sectional charts, wacs, or the vector/terrain planning charts. It calculates headings, winds, time, and fuel. It features Airways-based Auto-Routing, Climb and Descent calculations (a/c type based), Fuel Stop Planning, Auto-Route around MOAS and Restricted Airspace, Hi-Res Weather Radar Overlay, Viewing of current sectional, wac, and IFR charts, the ability to see a route over TFRs, detailed nexrad radar overlays over your routes, Terrain Profiles with cloud ceilings, and the ability to upload flight plans to GPS.
WabbelLab is a game were one has to roll a ball through a maze without hitting one of the holes. The nice thing about this game is that it is not controlled with the keys but with help of the camera. The camera is used to determine the tilt of the phone - and the ball will always roll into the direction in which the phone has been tilted. It was developed for the Nokia 3650 but seems to work also on other phones with similar hardware like the 7650.
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.
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.