Mobile ad network Millennial Media has officiallylaunched its software development kit for Windows Phone 7, allowing WP7 developers to more easily integrate advertising into apps for the Microsoft
smartphone platform. The new SDK includes support for rich media and interactive ads for Silverlight-based apps. Windows Phone 7 devices to date account for only a tiny fraction of the ad impressions
on Millennial's network, where Android leads with a 46% share of ad requests.
The Windows Phone Marketplace so far offers about 6,000 apps geared to WP7 phones, with an estimated 100 being
added each day. Some 22,000 developers have registered to distribute their apps through the Microsoft mobile storefont, according to FierceWireless. Read more here.