Launched this week for multiple platorms, including Symbian, Nokia Pulse is available, in browser form at least, for Windows Phone smartphones, running via Internet Explorer's HTML5 support. It's classed as 'beta' still, so there are still caveats about stability. Nokia Pulse is a location and media sharing system, there's a descriptive quote below.

Nokia Pulse brings your everyday conversations to life by automatically tagging photos and updates with your location.

Every conversation, from pickups and drop-offs to meet-ups, is as instant, private, and simple as sending a text, but far more useful and engaging. Nokia Pulse is integrated with Maps, so finding people nearby, discovering new places, and getting directions is a snap.

Group Conversations:
Keep it Private. Keep it Personal. Keep it Real.

• Private check in – All your conversations stay private and safe
• Photo check in – Automatically tag your location to all your photo updates
• Private by Default – No complicated privacy settings needed

Live Places:
One tap and they know where you are. Two taps to get you there.

• Bring your favorite places to life – Post a favorite place to a conversation
• Discover what’s nearby – Make and view recommendations of nearby places of interest
• Getting there is a snap – Get directions directly from the recommended place

Your People:
Your Family. Your People. You Decide.

• Instant: Receive instant on-device notifications of all new updates
• Open:  Everyone with an email address can participate
• Easy:  Sending and receiving messages with Nokia Pulse is as easy as SMS
• Powered by the cloud: Your conversations are saved in the cloud for as long as you need them
• Accessible from anywhere: Nokia Pulse is available on multiple touch-points - desktop web, mobile web, Windows Phone and Symbian devices