If you’re planning on getting the next generation of Apple’s iPad and haven’t already pre-ordered one, prepare to wait a little bit longer.

The company’s website has changed the expected shipping date for the new iPads from March 16 to March 19 in the U.S and 2 – 3 weeks in the U.K. This means Apple has completely sold through the initial stock of iPads intended for online pre-orders. I’m assuming the waiting time will increase again with this news hitting all the tech blogs.

So basically, if you want a new iPad on the launch date, you’ll have to wake up super early on March 16 to line up outside an Apple store or one of its authorized retail partners, such as Best Buy or Radio Shack.

While this version of the iPad doesn’t have a number attached to its name, it does have some notable upgrades. The biggest of these is probably the device’s “resolutionary” (yay puns!) high-definition Retina Display, which was previously only available on the iPhone 4 and 4S. It also features  impressive battery life and a more powerful A5X processor.

Have you pre-ordered a new iPad yet?

Photo of Apple senior vice president Phil Schiller by Heather Kelly/VentureBeat.

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