Desktop Twitter clients are a dime a dozen. But Twittastic Beta has a few features that really make it stand out from the crowd. This Twitter client for Windows does all the usual things, allowing you to see the latest updates from your friends, check direct messages or replies and send your own replies. For some reason there's no button for sending direct messages.

But Twittastic really shines when you want to share pictures or other files with your friends. The program features integration with Twitipic for image uploads and Drop.io for everything else. Want to share a document? Just click the Stuff button and select "Send a File." It will be uploaded to Drop.io and a link will be added to the text box. "Send a Picture" will do something similar, but using Twitpic. You can also drag and drop any file from your desktop or Windows Explorer into the desktop to upload it.