This beta presents almost no new features, but mostly better performance.
Better (don't confuse with beta) performance required to change how the proxy is treated. Beta testers that have a proxy may need to set it manually. You will know that you have to set the proxy, when the station menu is empty. However, most proxies will be auto detected from Internet Explorer.
The start up is quicker, less memory is used, and in general you should feel that OpenPandora is "lighter".
The only new feature (for now) is a popup tray notification with balloon.
Please report if you have any issues to email@example.com.