TAKING IT FOR A TEST DRIVE DEPT: Nothing special here. 'Just a crappy, random scribble test I did to try out Sketchbook 7's new flipbook features. So far, it's feeling like a good fit for me – of course, your mileage may vary depending on your expectations of a 2D animation package. However, at only $24.95 a year for the subscription, it's hard to go too wrong. First impressions? All the essentials are here: a timeline and real-time playback controls; layers, ghosting, and plenty of real-media style drawing tools. It's easy to add, remove, and duplicate frames. There are presets for the common screen formats and sizes (720 and 1080 HD, etc.) and the choice to customize them. Frame rates are also customizable. Drawing keys and timing them is very intuitive, especially if you are familiar with Maya's timeline – which Sketchbook's is very similar to. Even its keyboard shortcuts are the same: hitting the coma and period keys advances you forwards an