Weird, works for me - from Italy (not sure if there isn't just some caching going somewhere down the line and I can see it because of that)
edit: nevermind, it's almost certain i've got it cached
Definitely a DNS cache on your computer (Or even in Chrome)
It could also be geographic. Their update did say "some customers". I'm in New York and I'm also seeing the outage.
I can query the authoritative ns*.p16.dynect.com DNS servers from Europe (Germany in my case), and the traceroute looks like it's near Frankfurt. So the anycasted copies here seem fine.
and now these seem down as well. EDIT: and up again half an hour later