There are now some new metrics in Microsoft Bing Webmaster Tools.
The search performance report in Bing Webmaster Tools now includes metrics on crawl requests, crawls errors and indexed pages. Bing did used to include crawl and index reporting in other areas, however this now brings all that data into a single report. This is very useful to get a quick overview of your site’s health in search. You will quickly be able to see if a spike in crawl errors or in crawl activity has affected your organic traffic.