Ogle is a free word puzzle game, currently in development. It was inspired by a tabletop game called ‘Big Boggle’ (essentially regular Boggle with a five by five letter grid). I've made some changes, though, so don't expect an exact copy.
Ogle is written in C#, with builds targeting Windows XP and maybe Pocket PC. Preliminary screenshots are here. As you can see, the desktop version is almost complete. Check back in a few months if you're interested; I hope to finish it soon!