For those who missed it, the MSN AdCenter team now has a blog at http://blogs.msdn.com/adcenter. The most recent post is about the New adCenter Release Coming Up and it reads

You may be asking yourself, "Why a new version?" Well, our goal is both to make your adCenter campaign management easier and to improve your user experience. We've learned a lot from the customer feedback we've gotten so far, and now we're ready to share our ideas with you.

Updates include:
1. Order creation process simplified into 4 steps
2. Broader differentiation between campaigns and orders  
3. New pricing tab includes all budget, bidding, and incremental pricing
4. Negative keywords can be applied at the order level
5. Keyword / ad rejections include reason codes

 and lots of other cool changes - I'll post more details here later in the week so you'll know what to expect when you login after the release - and when the release will happen.

This is one product I can't wait for Microsoft to ship. It's cool that we want to improve our search engine and other online properties to be more competitive but it is all for naught if we don't have a good story around how we and our customers make money from our services. AdCenter to the rescue...