Sony Ericsson's next great thing, the Xperia Play, has just appeared on Vodafone UK's pages as its newest pre-order treat. Scheduled for a March 31st launch with a price tag of £free if you're willing to pony up £35 or more a month on a two-year contract. Vodafone's Xperia Play will ship with six preloaded games including Crash Bandicoot, Fifa 10, Star Battalion, Tetris, Sims 3, and Bruce Lee on the included 8GM memory card -- and includes som