Hi everyone, I'm wondering if it's realistically possible to learn the iPhone SDK and complete an app by the end of this summer. The app shouldn't be too difficult, it would just interact with my site's API and essentially just fetch, create, and edit resources. I already have a little experience with the SDK (and I'm comfortable with Objective-C), so I'm not completely new to it. Although here I things I don't know how to do and what I'd need to learn:

• Log in to my site using basic http authentication and store the user's username/password for all future requests
• Implement a toolbar at the bottom to navigate between different views
• Fetch and parse xml into list items
• Do POST/PUT requests to create/edit a resource on my server

Are there any good resources available to learn how to do those tasks above? Thanks!