Open Question: Anyone else's tax return still setting in Post Office in Kansas City MO?

Our tax return was mailed on Jan. 28 2010 via certified priority mail. It arrived in Kansas City MO on Feb. 3 2010. It still shows arrival at unit on the USPS website. I have checked the IRS website and no updates. It was mailed to The Department of the Treasury, Internal Revenue Service Center, Kansas City MO, 64999 which is the correct address. I filed a complaint with the USPS and was told that it was exactly where it needed to be and the reason for no delivery update was that it was among many more and probably had not yet been acknowledged by the IRS (they hadn't got to it yet). I have encountered one other person who has the same issue. We both qualified for the homebuyer's credit and sent in proper documentation. I was wondering if anyone else was going through the same thing that we are? And if you are what information do you have regarding this? Thanks for your time.