iPhone 4 Comparison

So you just bought an iPhone 3Gs (woops), what are the main differences between the 3Gs and the iPhone 4?  Check out the chart below for a iPhone 4 to 3Gs comparison. PRICE $199 (16GB), $299 (32GB) $99 (8GB) Display High-resolution Retina display 960-by-640 resolution 326 ppi Multi-Touch 480-by-320 resolution…