iOS 4.3 New and Improved Features

Ready for the iOS 4.3 upgrade? Connect your iDevice to the computer you synch it with iTunes and get ready for a 400+ MB download. If you haven't done so yet, you will also need to update your iTunes to its latest version, iTunes 10.2.1.1.

For those of you interested in What's New on the latest iOS iteration, here's a list
of the goodies that you get with the upgrade:

• Personal Hotspot*
  Share iPhone 4 cellular data connection with up to 5 devices (combination of up to 3 Wi-Fi, 3 Bluetooth, and 1 USB)
• iTunes Home Sharing
  Play music, movies and TV shows from a shared iTunes library on a Mac or PC (requires iTunes 10.2)
• New AirPlay features**
  Play videos from the Photos app including the Camera Roll album, iTunes previews, enabled third-party apps and websites on Apple TV
  Play slideshows from Photos on Apple TV using transitions available on Apple TV
• Faster Safari performance with Apple Nitro JavaScript engine
• HD video out using the Apple Digital AV Adapter***
  View 720p HD videos from Videos app, iPod app, Photos, YouTube, Safari, Keynote, and enabled third-party apps on an HDMI display
• Ping features
  Push notifications for comments and follow requests
  Post and Like songs directly from the Now Playing screen
  Parental controls
• New Settings
  Messages setting for number of times to repeat an alert
  iPad side switch setting to lock screen rotation or mute audio notifications and sound effects
  Single tap conference call dialing with a pause to send a passcode
• Bug fixes

*Requires iPhone 4 with tethering data plan
**Requires Apple TV (2nd generation) running software version 4.2 or later
***iPhone 4, iPad, iPod touch (4th generation)

For information on the security content of this update, please visit:
http://support.apple.com/kb/HT1222

If you are still using one of the old iPhone 3G, than I am afraid you will not be able to upgrade, as this version of iOS is not compatible with those devices. In fact, I highly doubt there will be any more updates to the iPhone 3G operating system. Time to consider upgrading your old phone, maybe?