Adcenter/Bing has made great progress in a short time however something so elementary hasn't been included. Geo targeting down to zip code level. Our clients have specific needs based on research where their customers come from. Presently the best available is city level based on microsoft providing a master list of cities but it takes too long to map for each client. Would be much simpler like Google where you can simply cut and paste the exact zips you want. If Bing is going to really compete this is a much needed feature at least in our business.