Got this mail in my inbox today; 

Following the successful launch of BidVertiser Ads for Feeds, we have now added 3 unique solutions that allow you to keep your current feed address (including FeedBurner!) when running BidVertiser ads for Feeds:

1. WordPress Plugin to allow you to seamlessly embed the BidVertiser Ads in your feeds.

2. Solution for FeedBurner that allows you to embed the BidVertiser Ads in your current FeedBurner address (and keep your Subscribers Count!).

3. Solution for Blogger that allows you to embed the BidVertiser Ads in the footer of each of your post feeds.

All of those great features are now available for you in your publisher control panel under the Get Feed Widget button (after registering a feed).

More info can also be found at http://blog.bidvertiser.com

You may log into your account using your username and password at:
http://www.bidvertiser.com/bdv/BidVertiser/bdv_login.dbm

For me, advertising in feeds has not worked out that well so far, and neither has BidVertiser, so will be interesting to see how well this works.