For those interested;
New features in the Beta of Microsoft Security Essentials include:
Enhanced protection through automatic malware remediation - The Beta will clean high-impact malware infections automatically, with no required user interaction. Enhanced performance - The Beta includes many performance improvements to make sure your PC performance isn’t negatively impacted. Simplified UI - Simplified UI makes Microsoft Security Essentials Beta easier to use. New and improved protection engine - The updated engine offers enhanced detection and cleanup capabilities.
The Security Essentials team