No.  While there seem to be frequent ddos attacks on many BTC sites I have gotten spoiled the last several months with bitzino always being up.  I hope they sort it out quickly and that it isn't anything that seriously threatens the site.

I did check my deposit addy and there are still some btc in it, so at least it's not an "all balances are gone" level crisis!

Edit:  And it's back!  Whew!