Open source MURLS submits links to multiple shorteners
The tiny, portable application is plugged in to 28 different services including popular ones like bit.ly, tr.im, is.gd, and tinyurl. Each shortener is selectable in the MURLS options screen, so you can create as few or as many truncated links as you please.
Just double-click any URL in the list view and it's copied to your clipboard for easy pasting into Twitter updates or anywhere else you need to send abbreviated links. By default, the app sorts created links by length - shortest links first.
MURLS can definitely be a useful little app for link sharer -- I just hope this doesn't lead to Twitter updates with a dozen shortened links crammed into the 140.
