Xperia X10, official long promo video with all the feautures 3.30 minutes

Xperia X10

Xperia X10:
• HD video recording with continuous auto-focus for high quality videos
• Upgrade of the Android platform to Android 2.1
• New back up and restore application, with extended content back up
• 5 homescreens for apps, widgets, shortcuts and folders
• Social phonebook which automatically syncs contact pictures from Facebook and shows when your friends are online

HTC Desire - Video Promo

HTC Desire

HTC Sense is an experience designed around many little insightful ideas. Ideas that seem so simple, you think “why hasn’t any one else thought of that? It just makes sense.” It’s a phone experience full of lots of little surprises, delighting you every time.
5 megapixels, autofocus, flash, and when you're done, you can upload your photos straight to Facebook©, Twitter™ or Flickr® 

There is a lot of content out there on the web that needs Adobe® Flash® to give you the best viewing experience. That's why the HTC Desire comes with Adobe® Flash® support, so no websites are out-of-bounds.
With the HTC Desire, you'll be pleased to know you can access all your business emails, calendar and contacts from your company directory wherever you are.

Official Apple iPhone 4 Video

i phone4

Because your iPhone goes with you everywhere, you’re always ready to capture every moment. And with iPhone 4, you can do it in stunning high definition. Its advanced backside illumination sensor delivers great-looking video in both bright and low-light settings. And in dark environments, you can brighten the scene with the built-in LED light.
Now you can run your favorite third-party apps — and switch between them instantly — without slowing down the performance of the foreground app or draining the battery unnecessarily.* This smarter approach to multitasking is available only in iOS 4.

Listen to audio in the background.

Now you can listen to audio from compatible third-party apps while checking email, surfing the web, playing games, and performing other tasks. So when you want to follow a ball game or listen to music from Pandora, your productivity never skips a beat.

Keep GPS apps running.

Apps that use GPS can continue to run in the background. Not only do they constantly update your position, they can also give you spoken turn-by-turn directions even as you listen to music (the music volume lowers while the directions are spoken). It’s perfect for social networking apps, too. Now you and your friends can find each other even when you’re not actively using the app.

Samsung Galaxy S - Official Demo