MegaBlock is a Tetris clone. It runs on most recent mobile devices, providing they have a screen size of 240×320 or better and support MIDP 2.0 and CLDC 1.1.

http://handhelds.freshmeat.net/projects/megablock/?branch_id=76723&release_id=289114

Frog Escape is a clone of the classic Konami game Frogger. It aims to have the same look and feel as the original game. It runs on modern devices with J2ME support with a screen size of 240×320 supporting MIDP 2.0 and CLDC 1.1 (most recent mobile phones, for example).

Thanks to retroK / http://www.aep-emu.de for the news hint!

http://freshmeat.net/projects/frogescape/?branch_id=76734&release_id=289167

This is a version of Password Composer (see http://www.xs4all.nl/~jlpoutre/BoT/Javascript/PasswordComposer/ ) that can be run as a MIDlet on phones etc. In short, Password Composer lets you have unique passwords for all web sites but only requires you to remember a single master password. If you already use Password Composer, but now and then want access to it without having to install anything or at all typing your master password on a machine you don’t trust, then Password Composer Mini might be for you.

http://code.google.com/p/passwordcomposermini/

WeightWatch is a J2ME application that takes daily readings of your weight and displays them in a chart with a moving average “tendency curve” in order to absorb errors in daily weighing.

http://code.google.com/p/weightwatch/

ScrWeather is a midlet for SE phones which shows weather forecast at phone screen.

Midlet releases are with Russian UI only!

http://code.google.com/p/scrweather/

Falldown is a simple arcade game for mobile phones.

http://code.google.com/p/falldown-mobile/

Voxtr is a Voice Recorder (aka Dictaphone) written in Java ME (former J2ME) and runs as a MIDlet. After an easy install on your mobile phone you can start recording voice snippets such as a reminder or a short memo. Never forget those hard to remember things.

http://code.google.com/p/voxtr/

MomberBan is a Bomberman clone.

http://code.google.com/p/momberban/

J2ME application for mobile phones that allows to easily find a person and make a call.

http://code.google.com/p/cellcontactsearch/

This program is dedicated to sport trainers or sportsmen. The user set the work time, the rest time and the number of lap he wants to go. The program beeps at the ends of each period to notice the user.

http://code.google.com/p/bbeep/