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The Apple iPad has a big screen for a portable device, but there are plenty of times when you might want an even bigger display. The official Apple iPad Dock Connector to VGA Adapter lets you do that, piping the iPad's 1024x768 screen into anything with a VGA port, whether it's a TV, projector, or computer monitor.

The iPad VGA adapter cable costs $29 and can be purchased from Apple retail stores or online. The adapter looks just as you would expect—a bright white cable with a VGA port on one side and an iPad connector on the other.

We tested all of the above apps on an HDTV and a 17-inch computer monitor and they worked fine. Keynote presentations and photo slideshows looked great on bigger screens. But when we output music videos and HD movies to the HDTV, the video didn't fill the whole screen. Instead, it came through with large black borders around all four sides. YouTube and Vimeo videos filled more of the screen than the HD movies did, but none of our test videos actually filled up the HDTV's screen.

The iPad's speakers are too weak to fill a large room, so you'll probably also want to pick up a separate cable at Radio Shack to connect the iPad's headphone jack to your HDTV's audio input. We used a mini-to-mini cable, and it worked fine.

We also decided to test out a few more apps. But Netflix, ABC Player, Theodore Gray Elements, and every other third-party app we tried didn't work. We're not sure if this is because Apple doesn't allow third-party apps to use the VGA cable or if app developers have to build that functionality into the app. Either way, it's a disappointment that an app as cool and handy as Netflix can't be pushed onto a larger screen.

The iPad VGA adapter is useful, but it could be a lot better. If you give a lot of presentations or want to watch iTunes content on your TV, it could come in handy. But it could really come into its own if Apple let it work with third-party video apps.

Unfortunately, the adapter doesn't work with all of the iPad's apps. Apple says the VGA adapter works with the following apps: Keynote (when playing a slideshow), Videos, YouTube, Photos (when playing a slideshow of photos), and Safari (when viewing video content from YouTube, Vimeo, FunnyOrDie, and other video sites).

"Although we have delivered more than 500,000 iPads during its first week, demand is far higher than we predicted and will likely continue to exceed our supply over the next several weeks as more people see and touch an iPad," the company said. "We have also taken a large number of pre-orders for iPad 3G models for delivery by the end of April."

Apple will announce international pricing and begin taking pre-orders on Monday, May 10.

"We know that many international customers waiting to buy an iPad will be disappointed by this news, but we hope they will be pleased to learn the reason—the iPad is a runaway success in the US thus far," Apple concluded.

The iPad made its debut in the United States on April 3. Apple said it sold 300,000 of the devices in the first day, including pre-orders, a number that jumped to 450,000 by the time Steve Jobs took the stage for the iPhone OS 4 announcement.

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