Cracked my screen earlier this week and have decided to replace the outer glass only (the LCD and digitizer work just fine) . I've seen a lot of folks on this site say that its not possible blah blah blah but a number of sucess stories can be found in this thread http://forums.macrumors.com/showthread.php?t=423263&page=2 ..... Anyway, my screen has several long cracks but is not polverized. What is the best way to break up the screen more without damaging the digitzer and LCD? I want to be careful to scrape and not pull the pieces off. I was thinking to hammer a pick in the black top and bottom sections and maybe try to use a hairdryer to heat and then an inverted canned air to freeze to force more cracks across the screen? Any thoughts? Some say that the digitizer underneath the glass is also glass, is this the case?