Not only a Google authenticator for 2-step verification for Java ME enabled phones. This is MIDlet-1.0 implementation of RFC 6238 authenticator - TOTP: Time-Based One-Time Password Algorithm. It's quick, simple and it supports multiple profiles.
goText is a free software for Mobile Phones to send free SMS messages over GPRS/EDGE/UMTS/WiFi connection. It is coded in Java (J2ME) with MIDP 1.0 and CLDC 1.0 profiles, so it can be used an almost any java enabled mobile phone/device!
SimulME is a Java ME (J2ME) application with Queueing calculator, Stopwatch, Monte Carlo simulation, Random Number Generator (RNG), Probability distributions, Kolmogorov-Smirnov and Chi-square tests. It works with MIDP 2.0 and CLDC 1.1 profiles.