Armed with the same super-aggressive price point and wide variety of colors as its predecessor version for iPhone 3G and 3GS, SwitchEasy's new Colors ($15) for iPhone 4 is a clean, simple silicone case design with plenty of pack-ins. Each case provides nearly comprehensive protection for the iPhone 4 by utilizing a rubber base case, headphone and Dock Connector port covers, and screen film -- the latter each provided in twos -- while a screen cleaning…