I have an unexpired H1B visa, but I left that job and the US in November, 2012. Now I've accepted another H1B job and my join date is in April, 2014. If you wer

I have an unexpired H1B visa, but I left that job and the US in November, 2012. Now I've accepted another H1B job and my join date is in April, 2014. If you were counted against the h1b cap in the last 3 (or 6, I'm not sure) years, you will not be counted against the cap again, and you do not have to wait until october (when this year's H1B visas become valid) to enter the US and start your job. Maybe the OP's situation is the same.