Sold in three versions, ZAGG's new InvisibleShield for iPhone 3G provides as much coverage for the new device as you prefer: a face-only shield sells for $15, a rear-only shield for $19, and a full body protector for $25. The shields are made, as always, from a completely clear but textured film that has previously been used to protect helicopter blades, protecting whatever is underneath from scratch and scuff damage. ZAGG bills the film as .2mm thick,…
