Bezel and screen coming off at top right corner of iPhone 3G

Hello, recently my iPhone has been falling apart! There are about 30-50 dust pieces underneath my iPhone screen. Not only that but I am more worried that the bezel and and screen are starting to some off the iPhone itself! Eventually a crack from the dock port up to the symbols and logos appeared cracking the plastic without any accidental damage, just appeared one day. So far it has been just been 9 months since Ive gotten it. Is it possible for me to go to an Apple Retail Store and ask for a swap? When I first bought the device Wireless Wave told me if any damage or defect came up theyd replace it with a 3G S from an apple retailer store. I am only curious thought if the dust, bezel, and crack count. Thanks in advance!
iPhone 3G 8GB 3.1.3 iPhone OS 3.1.3 Macbook Aluminum 13.3"