Syncing offline data to Rails app

I'm wondering how to go about setting up an app to allow data
collection offline that is later sync'd to the master db...

I picture the data collection being done on a PDA or something similar
and then docked and uploaded to the master online db, are there
plugins that handle this?

Any ideas or links to other similar discussions are appreciated.


Any ideas?

You could write a small ruby app that reads the data and then posts to
you site through HTTP.