HexNumber This is a number converter. You can enter a decimal, hexdecimal, binary or octal number and see what it is in the other formats. The full version has a very much better interface plus you can convert to and from any base, it's available only for 0.5$
Function Grapher Math function graphing tool: renders the graph based on your input equation
Bloft Bloft (BLobby and sOFT) is a 2D physics engine for J2ME phones with MIDP support
PRIMElet V1.01 A simple application for integer operations.
Factorization, Primality Testing, modPower, modInverse, Next Pr. Prime, Random Pr. Prime, GCD