I'm really not one that spends a lot of time playing video/computer games (Facebook Scrabble and Word-twist, notwithstanding), but in the past couple of weeks, I have spent some time with a complete productivity abyss called "Conquest".
If you're like me, you spent a good chunk of your pre-teen and early teen years playing RISK on a board with some friends and rarely if ever actually finishing the game in an afternoon. RISK was a game that was always better in theory (good balance of chance and strategy) than in practice.
Well, imagine my delight when I came across the Conquest app for the iPhone and iPod Touch (I have a Touch). Conquest is essentially a RISK emulator in which the computer controls the other players. One thing I like is that it's pretty customizable -you can vary the number of players and their skill level, as well as control/vary the value of cannon-horse-soldier cards.
In addition, the app includes about 10 different "worlds" to play on, so that you aren't always trying to capture Australia and then move out from there. The play is quick and intuitive, providing both an interesting strategy game and a dose of fond nostalgia.
Great for the airport or if you've got 20-30 minutes to kill — finally it doesn't take all afternoon!