Though we thought United SGP previously had a large lineup of Steinheil and Incredible Shield options, the new collection of choices for iPhone 4 owners is positively overwhelming. Start with the Steinheil series of screen film protectors, which now come in three different variations -- Ultra Crystal Clear ($14), Ultra Oleophobic ($14), and Anti-Finger Print ($12). The Ultra Crystal Clear promises 25% greater thickness than the prior version with…
