Google announced updates to their Webmaster Tools (formerly Sitemaps).
Googlebot Activity Reports and Crawl Rate Control
The last 90 days of activity from the Googlebot on your site including pages, frequency, and kilobytes all packaged up into a set of 3 handy charts. Webmasters can also now specify the frequency of the Googlebot’s activity on the site, from Normal, Slower, or if they detect you site can handle it, Faster.
An opt-in function allowing you to specify tags for the images on your site for enhanced image indexing and search quality.
URL Count from Submitted Sitemaps
A handy statistic reporting how many URLs Google sees in your Sitemap. If you have a concern that your Sitemap may have errors, this checksum should help you pinpoint problems.