Apple's decision to shave the iPad 2's profile and reduce its weight may mean a slight increase in broken screens, a repair expert said today.But other analysts who have torn apart the iPad 2 said that the new design will prevent shattered screens because Apple's using a new, more flexible material.As part of its work to slim down the iPad 2, Apple reduced the thickness of the tablet's glass overlay by 25%, from 0.8 millimeters to 0.6 millimeters, according to teardowns by the likes of IHS iSuppli and iFixit.com.The move will translate into a small increase in broken screens, said Aaron Vronko, CEO of Portage, Mich.-based Rapid Repair, a repair shop and do-it-yourself parts supplier for the iPhone, iPod and iPad. Vronko also pulled apart an iPad 2 to get an idea of how Apple designed its...