Lots of apps out there are just the website rehashed, but Ebay's site is not easy to navigate on a phone. You an access you My Ebay page and see items you have save on your PC. The ability to scan an item and look it up on with the barcode is great! However many items are not store with that much information on them, so it isn't always useful. Books, DVDs, games are some items that the barcode *should* work well for, but didn't in my tests.
Phone Tested On: Nexus One
Developer: Bonfire Media