Math Book
Since I do not do math every day I usually have check equations from some math book/net. SpeedCrunch has several dock widgets and I thought that some kind of math book widget would be nice. After mockup got positive feedback I wrote something to start with. Since writing simple browser with QTextBrowser is an easy job, that did not take long. When talking to Helder Correia he noted that this could be a more general book widget that could also show help etc. I think the result look promising especially considering how little time it took to make it :-)