The eBay application lacks the most important feature I need when I'm looking for something on eBay: tabs. I usually search for an item, then I middle-click each item that seems interesting, then I switch to the tabs that have been opened in background to analyze them. Without a tabbed interface, you have to show and item, then go back, show the next item, go back, and so on. You can't easily and quickly switch between two items to compare them. This is a common issue with almost all the smartphone/tablet application compared with the browser-based version.