My wife is H1B. I had filed I-485. My wife got the approved AP f

Hi. Greeting:

Please help me on my following case.

I have filed EB3 and my I-140 was approved. Also I had filed I-485 in July2007.

My wife have filed EB2 and her I-140 was also approved. But she did not caught up with the lucky July (2007). She still waiting for the priority date to file her I-485. Her priority date is Feb2008. Now she is still in her H1B.

I and my wife both had applied AP four months ago and received approved AP. My wife plan to go back to China this summer. Could she not apply H1B again in China? Could she use the approved AP? What is the consequence of her status if she use the AP.

Thanks.

Dan