The launch of the Apple iPad into other countries was a concern that availability in the United States would not improve quick enough. Worse, the terrible 9.0 earthquake in Japan may influence supply because 5 components are sourced from companies in Japan.
Concerns, though, will wane as Apple releases more tablets to retail outlets. Yes, the Apple online store still shows 3-4 weeks. Yes, it’ll take you time to track one down but it’ll work out. Don’t panic.
Man is it worth it, too. The increased battery life, camera, and faster processor are all features worthwhile.