The most impressive improvement in the new iPhone3G is the higher speed data capabilities. According to Apple battery life is no longer a problem with this upgrade. Almost as impressive is built in GPS which allows for location based applications. This opens up exciting possibilities like finding nearby businesses and turn-by-turn navigation. Also finding nearby contacts. Really cool is location stamps for photos taken with the iPhone which you can instantly send to a Blog.
All this power and the iPhone3G is still a pretty face! The new iPhone is scheduled to go on sale July 11th.