Tweet something about your Windows Phone app, include a link to it in the web Marketplace and mention @AdDuplex. Do it today (December 23rd) and tomorrow I’ll pick one app and award it with 250,000 ad impressions on AdDuplex network ($400 value).

No special requirements for the content of the tweet. Just make it easy for me to check your app by including a link to the marketplace and mention @AdDuplex so I don’t miss your tweet. That’s it.

Your tweet could look something like this:

Check out my Tic-Tac-Toe 3D game for #wp7! http://www.windowsphone.com/s?appId=ec266f35-401e-e011-9264-00237de2db9e /cc @AdDuplex

Good luck!