[kalid]

For what it's worth, off the top of my head I picked RunKeeper as an app I'd need before switching platforms. They stopped supporting WP last year (http://wmpoweruser.com/runkeeper-calls-its-quits-on-windows-...).

It's becoming apparent that the app data can provide more lock-in than the OS itself. (I don't want to find an alternative and lose 2 years of data -- just for the first app I thought I'd need!)

[dpark]

RunKeeper mentions Caledos as an option on their site. I haven't used it, and don't know how seamlessly it integrates with RunKeeper, but it has largely good ratings.

http://runkeeper.com/apps/activity-tracking/caledos-runner-o...

http://www.windowsphone.com/en-us/store/app/caledos-runner/0...