BrawlStats is a Wii application that will have to be ran after a Super Smash Bros. Brawl session. It will store automatically on your SD your results and then you will be able to navigate freely through a clean GUI that will show you a lot of information that Brawl doesn't store (or doesn't show). It can be like a database of your Brawl matches.
beta2 (2010.02.27)
some small bug fixes
some cosmetic changes
added a page indicator so you can know in what page you are
the ranking per matches now shows a new column that indicates the total matches
added a new help screen on the last tab
the return to Wii menu function works
numbers now use a fixed width font