It's not that the mental math was hard for me in calculating dart scores, but remembering my score from round to round proved to be too much. A good friend and I wrote this score-keeper very quickly to fill that need. It is for any 301-style game (you enter your own point value). Also, since most of us suck at darts too much to actually hit 0 on the head, we implemented a threshold of zero that constitues a win. There is alot of room for improvement (like an UNDO!), but for now it works. 5 players max.
Written January 2006, while I was a Junior in college.