Currently I'm working on a Google Summer of Code
project for OpenNMS.
Also, helping on Steam Translation Server when I have some free time.
Steam Locomotive is a PHP wrapper for Steam Web API with some useful tools such as Steam ID converters, validators, etc.
It's a tally counter for Android that can store multiple counters with their own names and values. This is my first Android application. The goal was to make something useful and easy to build.
Emulator of fully associative CPU cache with LRU replacement policy. UI is built using Qt framework.
This webapp estimates the time needed to transfer some amount of data.