Outlook Web Access on 4s

As I understand, the iPhone 4 is currently not compatible with Microsoft Outlook Web Access (OWA). My wife has to use it for work. Does anyone know if the iPhone 4s will be able to access it, or if there is a way to make any iPhone access OWA?

Thanks! I'm getting a 4s for sure, but if my wife can't get her email, she'll have to get something else.

Nevermind, I got it. YES IT CAN!

I did some dabbling with my wifes work email, and her current iPhone 3G. I also looked online and found this:

iPhone :: Lessons Learned

Yes, I can get my wife's email, calendars, and contacts. I wish the IT people knew this when she started there. It looks like we'll BOTH be getting the new 4s!

I was gonna say, I use OWA on mine all the time. It works great.