What are the best apps for the iphone?

I have 6 pages worth of apps and am always looking for more. Please tell me what you personally have experience with and what the app is about! Thanks!

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I Just love Funbooth - Funny, Scary, Interesting iPhone & Mac App announced recently by Sourcebits Technologies.

FunBooth is capable to explore the funny part of you and share it with your friends. You can take pictures and overlay them with very funny facial props, add-on features and other accessories which will turn otherwise regular-looking portrait into a masterpiece of comedy. Once your creation is made, you can easily share it with the world via E-mail, Twitter and Flickr.

The 711 finder is pretty sweet. I use urbanspoon and the snow report the most though.