In a word: Holyfreakin'crapthoseteetharebloodysharpouchouchouchOUCHIE!
Yes they can bite, and yes they can break skin. In fact there is a thread about a poster here who ended up with a bad infection from a glider bite and Ed, (LuckyGlider) had a pretty bad bite too I believe.
I've gotten bit only once by my new glider and it stung like nothing else!
They aren't like rodents though, their teeth do not grow constantly, they stay the same length throughout their lives....
Hope this helps and good luck with your baby!