Well, you've done it. You've successfully written an app that displays information obtained from Twitter and that lets the user share it on their own social network. For some platforms, it wasn't too hard to configure the plugins necessary to do this work, while for iOS, you probably got a bit more familiar with Xcode and header paths and such than you wanted. The rest was easy; adding plugins gets easier the more you do it, and chances are pretty good you'll need at least the ChildBrowser
plugin in nearly every project you do. Thankfully, it's also an easy install!
Some resources you might find valuable are as follows:
ShareKit: https://github.com/ShareKit/ShareKit
JSON: http://www.json.org/
Twitter JSON documentation: https://dev.twitter.com/docs/api/1
Phonegap plugins: http://www.github.com/phonegap/phonegap-plugins
Phonegap community: http://groups.google.com/group/phonegap
iScroll 4: http://cubiq.org/iscroll-4