Thanks for the info. On further digging, I found this useful link - http://www.culater.net/wiki/moin.cgi/CocoaReverseEngineering http://www.culater.net/wiki/moi

Thanks for the info. On further digging, I found this useful link - http://www.culater.net/wiki/moin.cgi/CocoaReverseEngineering http://www.culater.net/wiki/moin.cgi/CocoaReverseEngineering which provides some insights into accomplishing what Dropbox did.