TUAW's Holiday Gift Guide: Great casual games for iOS

We're about to enter what has been, in the past, the busiest weekend for App Store purchases. After people everywhere unwrap new iPhones, iPod touches and iPads during this Christmas weekend, they'll run to their computers to set up iTunes, then go shopping out on the App Store for software for their new devices. But there are a lot of different games to choose from on the App Store, and especially for people who only use software casually, it may be tough to find a few solid titles beyond the

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