This is the NYC program:
http://www.teachnycprograms.net/getpage.php?page_id=60
There are a few other programs, including a loan forgiveness.
http://www.teachnycprograms.net/
For the scholarship, you agree to work for a NYC public school for 2 years for every year of school. I went to an info session for it at the UFT (well, it was for the western kentucky distance pgm but they also talked about the scholarship program) and the # of scholarships they give depends on how much $ is available and also the mix of schools - so if they award to all Columbia or NYU for example there will not be as many people receiving scholarships. The DOE's budget situation is dire, to put it mildly, so not sure how many will be awarded this year. Also I have heard that they really prefer bilingual (spanish).
Here is info on the federal public interest loan forgiveness program
http://www.studentaid.ed.gov/repay-loans/forgiveness-cancellation/charts/public-service
Its really confusing! A lot of details and conditions. It only cancels federal student loans, not private loans.
I have about $20k left in law school loans and I do not particularly want to take out more but I think I will have to. I think that federal loans usually have significantly lower interest rate than private, and there are a lot of different ways to structure your payments so that you can pay a lot or a little each month.