Joe Belfiore, Microsoft Corporate Vice President for Windows Mobile, revealed an interesting tidbit today during a live stream broadcast with the @ch9live folks from Microsoft.

Answering questions from Twitter users during the live session he was asked about and then confirmed that you will be able to have multiple exchange accounts on one Windows Phone 7 Series device.  This will be in addition to all the other email accounts you may have such as POP3 and web based accounts.

He did say that on the calendar in Windows Phone 7 Series that all of your various calendars will be displayed on one screen using color coding to differentiate between the different accounts as opposed to a separate calendar page for each account.

I wonder if you will be able to have multiple Windows Live ID accounts as well?

Does anyone know that is in the know?