Days of Wonder's Ticket to Ride is one of the most acclaimed board game titles around, and the iPad version has done very well on the platform so far, bringing the "collect cards to build railroad routes" action of the board game to Apple's tablet. But the game didn't arrive on the iPhone until just recently -- last week, Days of Wonder finally released a smaller version that the first tutorial video calls "the simplest adaptation yet." And I'm happy to report that not only is that adaptation done as well as possible on the small screen, but it's also one of the best (and easiest, not to men