As you are aware, the FY 2013 H-1B season opened on April 1st. The U.S. Citizenship & Immigration Services provides regular updates on the number of petitions that it has received. Recent updates indicate that the cap will very likely be reached faster than it has been in the past couple of years.
You can find more information in a brief article we have written here. We advise all employers who expect to sponsor a cap-subject employee for an H-1B visa to contact us immediately if they have not already done so.