They already said they will be providing a way for users to export their data. http://blog.gowalla.com/post/13782997303/gowalla-going-to-fa...

Also Gowalla for the past year has has allowed users to checkin to 4sq, and facebook and share on twitter and tumblr and has moved to be more of a travel/spot info site. http://www.pcworld.com/businesscenter/article/212251/gowalla...