I've had my white GNote 1 International since 2012 February and have never once dropped the phone (and it's been caseless as well). 7 micro cracks around the raised plastic around the digitizer/screen. I think due to some flex, especially when I put my phone in my back pocket, has caused it to get these cracks. Apparently the black/blue phones do not have this issue (looked at my friend's and his does not have this issue, and he has dropped it twice.
What sucks is that I'm in the US and even if I Samsung did cover this, since I have an international Note, Samsung USA won't cover it.
I love my Note 1, so much so I have a Note 2 from Sprint. My white Note 2, because it does not have a raised plastic rim around the screen, does not have cracking issues, a good move by Samsung to correct the problem.
Maybe I'll just get a Gelaskin to make the phone more nicer looking.