Here is the official news regarding the cap:
http://uscis.gov/graphics/publicaffairs/statements/04FirstQtrH1B.pdf
It seems 43,500 cap subject cases have been accounted for. This includes both approved cases as well as pending cases, but they do not specify the split between the two. This includes backlog from previous year. AILA earlier reported that 11000 cap cases were pending from previous year. So it looks like about 10000 cases per month are being filled. That means that one could file new H1B petitions for another two months. So, there you go, end of March! Things could slow down, once the premium processing is stopped. So maybe a little longer.
Note that the cap would be actually reached much later, like in May or so, since the USCIS takes a long time to adjudicate the cases.
http://uscis.gov/graphics/publicaffairs/statements/04FirstQtrH1B.pdf
It seems 43,500 cap subject cases have been accounted for. This includes both approved cases as well as pending cases, but they do not specify the split between the two. This includes backlog from previous year. AILA earlier reported that 11000 cap cases were pending from previous year. So it looks like about 10000 cases per month are being filled. That means that one could file new H1B petitions for another two months. So, there you go, end of March! Things could slow down, once the premium processing is stopped. So maybe a little longer.
Note that the cap would be actually reached much later, like in May or so, since the USCIS takes a long time to adjudicate the cases.