It's more than just the 4G cellular, though. The new iPhone also has vastly improved Wi-Fi technology. has dual-band 802.11n which means it can take advantage of both 2.4GHz and 5GHz wireless networks. Apple claims the iPhone 5 can deliver a theoretical top speed of 150Mbps over Wi-Fi.

2. Branded, locked down iPads

Business users may not be too excited about this one, but some businesses will love it. According to a --a mobile device management company--Apple is introducing that will enable IT to brand and lock down iPads.

Businesses that want to employ iPads without exposing their data or networks to undue risk can basically turn the device into a one-trick pony that only runs the app designated by IT. A business could deploy iPads as mobile sales or cash register tools, dedicated kiosk consoles, or other unique purposes where it makes sense to prevent users from downloading and playing Angry Birds. IT can also assign an image--like a company or product logo--as the background of the iPad, and lock it to prevent anyone from changing it.

3. New maps and navigation