For those looking for a quick way to just Tweet, without loading their full Twitter client, waiting for all those tweets by their friends to show up, then 'Tweet & Go' is for you.
The app is by Adam Nathan, who brought us Metro Browser and numerous other apps to Windows Phone and it's quite useful, elegant and just right. You simply launch it, it logs in with your account and you can post away. You can even upload an image and use bit.ly (or your custom bit.ly). Plus, we just really dig the design (it uses your Twitter account's background image for that extra pizzaz).
The app fetches for $0.99 with no trial, which is a bit of a bummer. On the other hand, for those of you who need such an app, we feel pretty good about recommending it. Still, there is room for improvement: we'd like to see multiple Twitter account support, geo-location tagging and there looks to be a slight bug with the options not highlighting properly (see video). Hopefully we'll see those in later versions. Despite that, we really like it since nothing is faster for just posting a Tweet to the world.
Grab the app here in the Marketplace.