As a 1st round applicant, I submitted by the Dec04 deadline and received interview invitation in mid-Jan 05. However the detailed schedule has not been released yet (it is said by the Adcom that they will inform us in Feb).
According to my understanding, no 1st round applicant in Mainland China has been interviewed yet because the Adcom will visit China in March. All applicants with invitation will be interviewed then.
Checked online and found the invitation for on-campus interview. I applied for an interview in Shanghai today and am still waiting for confirmation. However, according to the instruction, NYU strongly recommends on-campus visit.