I was under the impression that RIM stopped development for their eBay for BlackBerry smartphones to focus on BlackBerry 10 development. If I am not mistaken RIM was using a 3rd party dev house to develop the app which has not really been updated since v2.0 came out of beta last year. Jason let us know that v188.8.131.52 of eBay for BlackBerry has hit App World but sadly carries no change log. This one skipped the Beta Zone too so it should be interesting to see what is new. Let us know if you spot anything.
You can download the latest eBay for BlackBerry smartphones free in App World. Hopefully RIM is working together with eBay for an awesome BlackBerry 10 app.