How to install iphone OS 3.0 firmware with itunes 8.2 . you should install latest iphone OS 3.0 firmware now. iphone OS 3.0 software has provided many new features:

Cut, Copy & Paste

Quickly and easily cut, copy, and paste text from application to application. Select entire blocks of web text with a tap. Copy and paste images from the web, too.

Landscape Keyboard

Want more room to type? Rotate iPhone to landscape to use a larger keyboard in Mail, Messages, Notes, and Safari.

MMS

Send MMS messages and include photos, audio, and contact info.2 Even tap to snap a picture right inside Messages.

Spotlight Search

Find what you’re looking for across your iPhone, all from one place. Spotlight searches all of your contacts, email, calendars, and notes, as well as everything in your iPod.

Voice Memos

Capture a memo, a meeting, or any audio recording on the go. Voice Memos works with the built-in iPhone microphone or with the mic on your headset.
Calendar
Improved Calendar

Create meetings via Microsoft Exchange ActiveSync and subscribe to calendars with new CalDAV support.
itunes store
Buy Movies, TV Shows, and Audiobooks

Download movies, TV shows, music videos, and audiobooks from the iTunes Store on your iPhone.3
Stocks
Enhanced Stocks App

Get more at-a-glance information and view charts in landscape, etc.

Apple display the simple ways to update your iPhone 3.0 firmware via iTunes 8.2 . you can install it follows these steps:

Step 1.

Make sure you are using iTunes 8.2. Connect your iPhone to your computer.
Step 2.

When iTunes opens, select your iPhone under Devices in the Source List on the left.
Step 3.

In the iPhone Summary pane, click Check for Update.
Step 4.

Click Download and Install. Do not disconnect your iPhone until the update has finished.

Tags: install iphone 3g firmware, install iphone 3g os, update iphone 3g firmware