Here’s a collection of tips and tricks to help you do more — and be more productive — with your iPhone 4.

Scroll to the top fast.

In Safari, Mail, Contacts, and many other apps, tap the status bar at the top of the screen — which displays the carrier information, time, and battery level — to scroll quickly to the top.

Choose your wallpaper.

In Settings, choose Wallpaper, tap the image of the Lock and Home screens, then tap one of your photo albums or tap Wallpaper for the Apple-designed images. Find the image you want, tap Set, and then choose whether to use it as wallpaper for your Lock screen, Home screen, or both.

Drop a pin.

In Maps, touch and hold anywhere on a map to drop a pin so you can find an address, get directions, or see street view for that location.

Lock the screen orientation.

Double-click the Home button to bring up the multitasking interface, then swipe from left to right. Now tap the portrait orientation lock once to turn it on and again to turn it off.

Tap to zoom the camera.

Tap the screen to bring up the zoom control, then use the slider to zoom in and out up to 5x.

Add PDFs to iBooks.

From a Mail message or a web page, touch and hold the PDF icon or link, then select “Open in iBooks.”

Use the compass
with maps.

Tap the Location button in Maps twice to use the built-in compass to orient the map based on the direction you are facing.

Create web clips.

To add a website to your Home screen, visit the page in Safari and tap the plus sign at the bottom of the screen. Now tap “Add to Home Screen.”

Learn some keyboard tricks.

• Tap the space bar twice, and iPhone adds a period and capitalizes the next word.
• To enter a number or symbol quickly, touch and hold , then select the key you want. Lifting your finger returns you to the alphabet keyboard.
• Touch and hold a letter to reveal a list of special characters.

Scrub through audio and video.

When you’re watching a video or listening to music or a podcast, the scrubber bar lets you skip to any point along the timeline. You can adjust the scrub rate from high-speed to fine scrubbing by sliding your finger down as you drag the playhead along the scrubber bar.

Keep your inbox clean.

In Mail, you can delete or move messages in batches. From your inbox, tap Edit, select the messages you want to organize, then tap Delete or Move.

Take a picture of your screen.

Press and hold the Home button, then press the Sleep/Wake button. Your screen flashes and the picture of your screen appears in your Camera Roll.

Create an iPod playlist.

In the iPod app, tap Playlists, then tap Add Playlist and give it a name. Now tap any song or video to add it to the playlist. You can add individual songs, entire albums, or all songs by an artist.

Tap to focus the camera.

While shooting video or photos, tap the screen where you want to focus. iPhone will also adjust the exposure and white balance automatically.

Swipe to delete.

Delete email messages and text conversations without opening them. Just swipe across the email or conversation and a Delete button appears. Tap it to delete.

Cut, copy, and paste.

Find the text you want to edit in a note, email, web page, or other app. You can select a word by double-tapping it, and select more or less text by dragging the grab points. Then tap to cut, copy, or paste. To undo an edit, shake iPhone, then tap the Undo button.

Save images
from the web.

In Safari, touch and hold an image to save it to your Camera Roll or copy it to paste into an MMS or email.

Display character count in text messages.

In Settings, tap Messages, then tap the Character Count switch. The count appears as you type when your message exceeds two lines. You may want to do this when carrier fees apply.

Place a call on hold.

On iPhone 4, touch and hold the Mute button to place a call on hold.

Get back to your draft.

In Mail, touch and hold the Compose button to switch to your last saved message draft.

Read the iPhone User Guide.

For more tips, tricks, and instructions, tap the Bookmarks icon in Safari, then select iPhone User Guide.