This is very frightening actually, I used to use puush all the time back in the good ole days, actually I've been using puush ever since it was first launched, this is a very sad day for sure.
I'm glad I haven't used puush in a while, however I feel bad for all the people that constantly use it, the program was probably binded with a key logger of some sort.
Anyways I'm sure this is a very sad day for the puush team as everyone is going to be very cautious about using their service again.