For those of you who have bidding fever, you've got good luck.
According to Forbes, Microsoft asked the online flea-market eBay to make a mobile application for Windows Phone 7. Being the good company they are, eBay of course accepted the request and should have the app ready to go when the OS finally launches this Fall.
In addition, eBay is playing around with adding a Half.com application (no word if a WP7 version will appear), barcode scanning, video and other tweaks to make the software even better. Basically they envision that one day you can use your mobile's camera to scan a vehicle VIN, someone's clothes, etc. and find car parts or that guy's shirt you dig so much.