Syndication based on tags & categories

I'm watching the 4.0 Beta webinar from last week and just got through the section on Syndication. I like how you can combine multiple sources in Sitefinity into one feed. I wanted to know, will you be able to filter the items going into that syndication based on tags or categories.

For example, give me all the blog, news and events items with a tag of "technology".

Hello Jon Ingersoll,

This feature will not be available with the beta, but we will try to include it in the official release. Your opinion (that we should have it) actually helps, and proves that this feature will be worth to have :).