I wonder if I could store data with PhoneGap and Appcellerator both locally and remotely (postgresql in my web application)?
Cause it's gonna be a realtime app that has to sync data between the mobile and remote backend server.
yes you can, with PhoneGap, I am not familiar with Appcellerator.
With PhoneGap you can store to local database
http://phonegap.pbworks.com/Adding-SQL-Database-support-to-your-iPhone-App
Or you can store to the file system
http://phonegap.pbworks.com/JavaScript-API#file
Complete Documentation http://docs.phonegap.com/
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