What ringtones does the iPhone have?

Here are the ringtones the iphone currently comes with:

Marimba

Alarm

Ascending

Bark

Bell Tower

Blues

Boing

Crickets

Digital

Doorbell

Duck

Harp

Motorcycle

Old Car Horn

Piano Riff

Pinball

Robot

Sci-Fi

Sonar

Strum

Timba

Time Passing

Thrill

Xylophone

And the Alert tones (also ringtones):

Alert

Anticipate

Bell

Bloom

Calypso

Chime

Choo Choo

Descent

Ding

Electronic

Fanfare

Glass

Horn

Ladder

Minuet

News Flash

Noir

Sherwood Forest

Spell

Suspense

Swoosh

Telegraph

Tiptoes

Tri-tone

Tweet

Typewriters

Update

You can also buy and create your own ringtones if none of these sound good.