B@ggle is an online boggle game free software.
It is written in java and works on all platforms where a jre is installed.
It works in a decentralized way: everybody can start a server (@home or @own server)
There is only a french version yet, looking for an english grid+dictionnary+translation.
Get involved on http://codingteam.net/project/baggle
At one point, Open Hub analyzed source code for this project based on code location(s) available at that time. Since then, the code locations have been removed.