Its not Grindr, but the Scruff gay dating app offers another way for gay men to discover others in their local area.
SCRUFF uses your Windows Phone GPS and WiFi capabilities to connect users with gay guys nearby, and has users in over 180 countries and 6 continents.
The app is free and can be found in the Windows Phone Store here.
See a video of the Android version, which has more than 500,000 users after the break.
Thanks Pavin for the tip.