Three weeks after the introduction of iPhone 3G, Apple has released "iPhone 3G. A guided Tour." Just like with every other product Apple emphasizes, the video uses a well versed Apple bloke to tell you what's new.

Don't get all excited, though. If you've been reading the news lately, the guided tour doesn't hold any surprises. It is, however, a good insurance you're not missing anything, as far as the new device goes (particularly stuff like where its buttons and connectors are placed and how Maps with GPS performs on it).

Among other things, the video shares information about the capabilities of 3G networking, iPhone in Enterprise, MobileMe, Maps with GPS and the App Store. The guide even demos a racing game that uses the iPhone's accelerometer. Let's see a few details on each topic, if you don't have 30 minutes (or so) to spare watching the tour.

iPhone in Enterprise - With support for Microsoft Exchange ActiveSync, iPhone 3G delivers push email, calendar, and contacts and uses enterprise-grade networking with Cisco IPSec VPN and WPA2 Enterprise support.

MobileMe - Apple's new MobileMe Internet service that automatically pushes new email, contacts and calendar events to your Mac, PC, iPhone and iPod touch, makes sure all your information stays up to date, everywhere. MobileMe also provides support for push email, calendar and contacts on your iPhone and any computer. The changes you make on one device are automatically "pushed" to the MobileMe "cloud," then back to every device you use.

Maps With GPS - Using Maps on the iPhone, you can find your location, get directions and even see traffic, anywhere. Maps on iPhone 3G uses GPS, Wi-Fi and cell tower location technology. For example, when 3G isn't available, the iPhone automatically switches to Wi-Fi.

Applications and the App Store - Thanks to 3G, the App Store is accessible from just about anywhere. You can browse categories, do a keyword search, or take a look at recommendations to ultimately download and install applications directly onto your iPhone. After downloading and installing an app, you may notice a small change with the App Store icon, every now and then - whenever an application update is available, iPhone displays a red number (much like the Apple Mail notification) on the App Store icon. Applications are downloaded directly from the new App Store. Most apps leverage all the groundbreaking technologies crammed inside Apple's handset.

That's summing it all up for you. Care to watch the tour too?

iPhone 3G. A guided tour - iPod (34MB)

iPhone 3G. A guided Tour - Large (108MB)