A game can be fun without delivering cutting-edge graphics, realistic physics, and high fidelity sound effects. Take word games as an example – they are both challenging and enjoyable, even addicting if you're a fan of the genre. Better yet, your brain gets a welcome exercise with every word puzzle solved. That can't be bad, right? That's why we thought we'd share with you some of our favorite word games for the iPhone and iPad. Below you'll find 10 great titles that will put your vocabulary and spelling skills to the test, all while keeping you entertained for hours at a time. Check them out!