Microsoft has released a Beta (Build 8.0.0783) version of their Windows Live Mail Desktop. This software allows you to:

1) Check multiple email accounts from one place including MSN/Hotmail, AOL and GMail and any POP3/IMAP enabled account with the look and feel of Microsoft Outlook. C
2) Configure newsgroup accounts
3) Add RSS feeds
4) Chat with MSN Messenger contacts from the program itself

And some other features. You can sign up for the Beta here