My interview was at 1:30PM today and I went there around 11:00AM. I was called in around 1:25PM. A very nice American American Officer helped me. The interview was very short. She took my fingerprint and asked me to take the oath. Then she asked me very routine questions according to the 485 application form. Finally, she took all my EAD cards(total 4 cards), I94 card, 3 years' tax return, 3 month paystubs and stamped my passport. She told me that this passport was valid for a year and it's good for the travel during this period. I was told that the actual plastic card would be emailed to my address within 3 to 6 months. The whole interivew lasted about 10 to 15 minutes. I am glad that my journey for the greencard is finished. But I will keep myself posted when I get my actual card. Thank you guys so much for all the information and support. Good luck, everybody!!!