WittyTwitter is a Twitter client for Windows Vista and XP that is powered by the Windows Presentation Foundation (WPF). Witty was developed in C# using Microsoft Visual Studio and Expression Blend. It is a free Desktop-Based Twitter client for Windows users.

Witty allows you to update you twitter directly from the desktop. Other functionalities including:

• View recent Twitter statuses from the people you follow (auto-refreshing)
• View recent replies to you
• View a specific user’s timeline
• Update your twitter status
• View and respond to Direct Messages
• Links will open in the user’s default browser

The following is the complete list of available keyboard shortcuts:

• ctrl-u – Toggle the update area
• ctrl-r – Add @screenname of the selected Tweets user to the update textbox
• ctrl-q – Quit. Exit. Vamoose.
• ctrl-o – Open the options dialog.
• ctrl-1 – Show the “Recent” tab.
• ctrl-2 – Show the “Replies” tab.
• ctrl-3 – Show the “User” tab.
• ctrl-4 – Show the “Messages” tab.
• F5 – refresh. It seemed best to stick with IE/Firefox’s refresh key

You can download the beta version of Witty for Windows Vista and XP here. For more screenshots, visit Witty Screenshot page.