Zune Team have released Windows Live Messenger for the Zune HD.

Messenger for the Zune HD lets you check out social updates from your friends on Windows Live which includes things they’ve shared from Facebook, Flickr, or MySpace and chat with your friends.

Messenger for the Zune HD also displays what you’re listening to just likes the Zune media player does when signed in to Messenger on a Windows PC.

SOURCE windowsteamblog

Nokia Chat is a IM client that integrates to your Contacts Application.

You can chat with your friends, send voice messages to your chat partners, and indicate your availability to your friends. You can also show information about your location to your contacts.