The H1B cap count was always an indication how our economy is doing. While we see recovery, it is a slow one. Same goes for H1B numbers usage.
As of April 15, 2011, approximately 7,100 H-1B cap-subject petitions were receipted. Additionally, USCIS has receipted 5,100 H-1B petitions for aliens with advanced degrees. If the numbers continue in this slow movement, we are looking to have H1B numbers open all through the summer and beyond.
Of course this could change at any time, so if you have an H1B employee in mind, file sooner than later.