The concept of the glass giving is a good one, however in real life it only "gives" under certain circumstances.Supposedly, the glass is similar to the glass on the Dell Streak, Gorilla Glass. The glass gives, instead of cracking.
I've been lucky, but two of my friends dropped theirs when walking between their car and the office. When the phones hit the pavement from waist high they both shattered into hundreds of pieces. One had a bumper and the other a skin. So much for those two. Gorilla glass didn't help at all.
Does that make it a bad phone? Nope. Just one that you need to take some care with. ....