I've finally published the update for my FeedPoint app for Mango. It's got a few bug fixes as well as Mango specific functionality such as ability to pin live tiles for your feeds which get updates via a background agent.

The tiles would get updated with the latest post's image as a backround tile. This is how the home screen would look like:

You can find the app in the Marketplace here:

http://www.windowsphone.com/en-US/apps/ec451fcf-7b10-e011-9264-00237de2db9e