This is the email client from the guys behind BBEdit. Nice.

I wonder how well this application would work for programmers. I need to jump between the terminal and a text editor quite often.

It's default document format is PDF.

An online notebook (like SimpleNote) which encrypts all your notes. Encryption/Decryption is done on the client side, so the web service doesn't know what you are storing.

The to-do list made simple again.

You can use the service to share your location (with friends, or whomever).

This application is very well done.

Create new documents directly in the OS X Finder.

Like iTunes, but for keeping track of your recipes.

Currently in beta, another way to upload photos and view photo streams on your (mac) desktop.

Apparently the Windows version was always in the works, but with the upcomming release of Tiger he was in a bigger rush to get it out.

A very cool, cross platform, free, instant messenger/newsreader application.