How can I search my iPhone?
iPhone OS 3.0 and later includes Spotlight search to find any content anywhere on your device. There are three ways to access the main spotlight screen:
1. Click the home button when you are looking at the home screen.
2. Swipe to the right with one finger when on the home screen. Spotlight search is the screen to the left of the home screen.
3. If you are not looking at the home screen, first exit any application you might be running. Click the home button once to return to the home screen. Then click the home button a second time to bring up Spotlight.
To use Spotlight simply enter a search term in the Search iPhone field at the top of the screen. A list of results will appear organized by application (Mail, Notes, iPod etc.)
If you're interested in only searching in one application:
In Contacts, the search bar is above your first contact alphabetically organized. Swipe down until you scroll to the very top of your contacts list and the search field will appear.
Mail inboxes can be searched the same way. While looking at your inbox swipe down to reveal the search field above the most recent email message at the top of the screen.
To search in the iPod application, swipe down until you reveal the search field at the top of the screen. This works whether you're looking at one album, artist or your entire music library.