Sparrow is a minimalist email application designed to keep things simple and efficient. It also has seriously awesome social features integrated directly into the app and is designed specifically with Mac users in mind.
Pulp for Mac now automatically updates itself whenever you make a change on another Mac or iPad through Pulp Sync. This feature has existed in the iPad version since day one, and is now enabled on the Mac – thanks to Lion.
Chuck is designed to be quick and simple, and to get out of your way — just type in the first few letters of your applications and you're finished