I've applied for the Public Programme internship too, the tension is killing me! I'll be sure to let everyone know if I hear anything, has anyone else heard back yet?
I was accepted onto a programme at another gallery in New York a couple of years ago (unfortunately I didn't get to actually go and do it) and it took around 6 weeks for them to notify short listed candidates. That was with 600 applicants, and several more places than are on offer at MoMA. It was also unpaid so I can imagine how many people must have applied for these paid positions!