iPhone apps

I have a question for my iPhone-wielding compadres: what apps do you find truly useful? Other than the ones that come standard.

I've grown partial to the following:

Evernote - particularly useful since it automagically syncs with my laptop via the internet. Good for recording notes, saving web pages etc. A useful catchall and organizer for information.

TripIt - useful as long as you're comfortable with them potentially having access to your travel info. It's also available on LinkedIn if you happen to have an account there. I like the built-in flight status and map features.

UrbanSpoon - for when you're traveling and have a need for good Thai food...

Silence is the enemy (Do what I say, please) [Updated]

Please go read CPP's latest post. Then go here and here and here. Click until your fingers bleed.

[Updated link to Isis' post on Silence is the Enemy]