[webandy]

I hacked together a "recipe" (requires a few steps) to migrate your gowalla checkins to foursquare. I moved 350 of my check-ins this way a couple weeks ago. I wanted to preserve the record of where I'd been, and more of my friends use Foursquare anyway. Unfortunately the 4sq API did not provide a way to back-date the check-in, so they all occurred on the same date (date of the API post). Perhaps that has changed? Take a look, fork/extend/add features etc., hope it is useful for someone else! https://github.com/webandy/migrate_gowalla_checkins_to_fours...

[harryh]

We're working on the lack of ability to back-date checkins. We want to be a bit careful about how we do it, but should have something soon.

[lpolovets]

Awesome!

If you or anyone else is interested in migrating from Gowalla to a different service, the company I work at, Factual, has a useful (Beta) API for mapping ids between different location data providers: http://developer.factual.com/display/docs/Places+API+-+Cross...

[harryh]

We've now got things set up to handle backdated checkins, but you'll need to get whitelisted. See:

http://twitter.com/foursquareapi/status/144516117510111232