Apple Corp's iPhone is a cell phone that runs the OS 4 software. Keeping your iPhone updated with the latest software updates will not only make your Internet features faster, it will also improve the stability and functionality of the phone's other software. You can update your iPhone's software through the iTunes software that is included with the phone.
Connect your iPhone to your computer and wait for the iTunes software to automatically launch.
Click on the iPhone icon from the left side of the menu and then click the "Summary" icon.
Click the "check for update" icon.
Wait for the iPhone software to update. The phone will restart automatically. Once the software updates, you should be able to more quickly access the Internet.