This project allows a user to enter two Texas Hold’em poker hands and see how often each wins. The community cards can optionally be exposed to see how the results change.

Two number are displayed per hand, the first is the win % (these may sum to less than 100% due to split pot options). The second is the pot equity. This is the % of the pot you can expect to win on average (which includes split pot winnings).

http://code.google.com/p/ipokereval/