We've already had one major Facebook press event this year for the launch of Open Graph personalized search features but according to TechCrunch, another one later this week will herald the arrival of a revamped news feed. The new main page will filter content by type to pull out photos, music, with larger images overall and larger images for advertisements. The mockup shown above is based on information distilled from various sources that indicates the social network's plan is to put currently buried feeds like Pages users have liked in a m