Chris Buffa (Modojo): The holidays involve presents, decorations and spending time with family. This often comes at the expense of one's bank account, so the last thing we need is a free-to-play iPhone and iPad game nickel and diming us every chance it gets. That said, Pocket Gems' Paradise Cove: Holiday Adventure exemplifies everything that's fun and frustrating about this time of year. On one hand, there's plenty of holiday cheer to go around. On the other, it wants money, and lots of it.