Actually, the standard u-lock portion of the New York Lock is suceptible to this attack. Fortunately alot of messengers ditch that part and instead use normal flat-keyed padlocks.

Regardless, the worst part of this vulnerability is that it apparently even works against a number of the higher end, $80+ Kryptonite u-lock models. So it's just not a matter of cheap locks.

I would never lock up my 1k+ bike anymore; if it is outside my house I am within arms length of it. I even use sturdy locks on my junk-built singlespeeds, after one of them got stolen.