I used AP
Hi there,
I have travelled using AP in much worse situation and nothing happened. At the port of entry (JFK in my case) they sent me to a smaller room, where they asked if I was adjusting my status through marriage or work. I replied work, and asked me the name of the company, I gave them the name.. she stamped on the AP, made copies for herself, and I was ready to go. That\'s it!
Guys, if you have an AP, don\'t worry.. there won\'t be any problem at all. Just go and have fun. You WILL be admitted back to the country. I was so much worried about coming back, that I was not able to enjoy my vacation in full potential, in one corner of my head this uncertainty was always bugging me, telling me "what if?". I don\'t want any of you guys to go through the same ordeal. Just go and enjoy.
On a separate note, it is not true that once you use AP, your H1 becomes invalid. If you use EAD then your H1 becomes invalid. You can use AP to travel and still be on H1B visa and choose not to apply for EAD.
Hope this helps.