Will it load faster if I drag all my images to xcode. Or does it load faster grabbing from the internet?

it loads faster locally then from the internet, also, if they are not connected, they will load anyways (always better to do it that way!) David.

@Jersey - Depends on when you are referring to. Do you mean the loading/install of the app on a phone, or the loading of content on a screen? Embedding content will make for a longer install of the app to the phone as everything has to be downloaded and installed. Also, if the app is over a certain size (10mb I think?) the end user will need to be on a wifi connection to download the app. A 3g connection won't work for apps over that size. However, like @David said, the content on the phone will load faster than files accessed online (that aren't cached) and the content will be available even without an internet connection after the app is installed. In the case where you are grabbing content (images) from the internet, the initial install of the app will be faster. Also, odds are greater that your app will be under the size restriction requiring a wifi connection. As screens load for the first time they will load slower than screens made with embedded content. However, after the screen has loaded for the first time, most content is stored in cache and will load just as fast as embedded content the next time that screen is opened. This will remain true and content will be available offline so long as the devices cache isn't cleared. But, keep in mind that content that hasn't been accessed and cached won't be available offline. From there the main difference is in how your app updates. If you want to make changes to embedded content you will have to submit an update to apple. With content accessed from the internet, all you have to do is change the file on your server / update your control panel.

@Parker: Awesome post!

Thanks Parker, I like the idea of the force refresh on the initial opening.