Research in Motion and eBay have teamed up to offer an official eBay app for the BlackBerry which is now available on BlackBerry App World.

The eBay BlackBerry app, which is currently in beta, allows you to search, watch, bid, and purchase items via PayPal directly from your device.  The eBay BlackBerry app also pushes notifications to you in real time letting you know if you’ve won an item, have been outbid, or if an listing is ending soon.

The official eBay BlackBerry app is a free BlackBerry download, so, definitely check it out if you use eBay.  Something tells me that this application is going to be somewhat of a hit.