eBay is testing out version 4.0 of it’s app and is looking for people to try it out, but it’s a closed beta. So closed, even if you get the app elsewhere you won’t be able to use it. If you want to test it, there’s a form you can fill out to get access.
The form is available as a Google Docs survey, where you’ll be asked if you want to test it on Android or iOS. Interested? Head over to the form and fill it out.