If you want one you'd better get there early!
From USA Today:
After weeks of buildup, iPads hit stores at 9 a.m. Saturday. They will be sold out by "early afternoon," predicts tech analyst Richard Doherty of Envisioneering Group. Piper Jaffray analyst Gene Munster estimates Apple will sell 200,000 to 300,000 iPads this weekend and 1 million in the quarter.
Lines could be long at Apple Stores as buyers get help setting up e-mail, adding software apps and moving data from computers to the iPad. Some university campus bookstores and Apple resellers, in addition to Apple Store and Best Buy, will be selling iPads.
When Apple introduced the iPhone in 2007, lines moved slowly, in part because customers had to activate their phones with AT&T. Not this time.