Sparrow is a super-simple Mac client for Gmail. If you’ve used Tweetie for Mac (which is now owned by Twitter, but development is more or less frozen), you’ll feel right at home here. On the right hand toolbar you’ll find a big icon for you account (again, just like Tweetie), your inbox, your starred items, your replies, your drafts, and your trash. Along the top of the window, you’ll see an option to compose, reply to, archive, or delete. Naturally, there is also a search bar as well.
Syncing your message initially takes a little bit of time, but not too long. And the number of items you have starred is shown under the star menu area. A new message indicator is installed in the top toolbar on your Mac, and it also supports Growl. The minimalist UI can be expanded a bit if you choose to use the Preview pane — which does exactly what you thinking: shows you a preview of the email you select.
But the best part of Sparrow may be the multiple account support. You can add as many Gmail accounts as you’d like and switch between them with a mouse-click in the left-hand menu (once again, just like Tweetie for Mac).
There are several other subtle UI elements that are great, and a nice change of pace from the comparatively utilitarian Gmail. And yes, Sparrow even supports Gmail message threading.
What’s next ?
Sparrow will soon support several IMAP email providers and integrate labels for Gmail users.
Download free beta from here