Here’s another promotion that will be of interest to those Windows Phone developers who publish several apps, and want to get some free publicity for them.

Publish 5 new Windows Phone 7 apps between April 1, and June 30, 2011, to Windows Phone Marketplace and submit your entry using your event code. You'll get 25,000 impressions of free WP7 mobile advertising for one app of your choice. Impressions will run across MSN, Windows Live and Fox Sports mobile browser ad network for Windows Phone 7 devices.

Enter today!