Maps:
See a street map, satellite view, or hybrid view of locations around the world. Zoom in for a closer look. Find and track your current (approximate) location. Get detailed driving directions and see current highway traffic conditions. Find businesses in the area and call with a single tap.
Weather:
Get current weather conditions and a six-day forecast. Add your favorite cities for a quick weather report anytime.
Clock:
View the time in cities around the world—create clocks for your favorites. Set one or more alarms. Use the stopwatch, or set a countdown timer.
Calculator:
Add, subtract, multiply, and divide. Rotate iPhone sideways to use expanded scientific functions.
Notes:
Jot notes on the go—reminders, grocery lists, brilliant ideas. Send them in email.
Settings:
Set up accounts and adjust all iPhone settings in one convenient place. Set your ringtone, wallpaper, screen brightness, and settings for network, phone, mail, web, music, video, photos, and more. Set auto-lock and a passcode for security. Restrict access to explicit iTunes content and certain applications. Reset iPhone.
iTunes:
Search the iTunes Wi-Fi Music Store music catalog, or browse, preview, and purchase new releases, top-ten songs and albums, and more.1 In select Starbucks locations,3 find out what song is playing in the café, then buy it instantly. Browse, preview, and purchase other songs from featured Starbucks Collections.
App Store:
Search the App Store for iPhone applications you can purchase or download using your Wi-Fi or cellular data network connection. Read or write your own reviews for your favorite apps. Download and install the application on your Home screen.
Contacts:
Get contact information synced from MobileMe, Mac OS X Address Book, Yahoo! Address Book, Google Address Book, Windows Address Book (Outlook Express), Microsoft Outlook, or Microsoft Exchange. Search, add, change, or delete contacts, which get synced back to your computer.
Reminder: Don't forget to watch the iPhone 3G Applications video demo at the bottom of this page...
For more iPhone 3G features:
Please continue reading here......