http://www.tomshardware.com/reviews/cloud-computing-bpos,2313.html

We are building substantial sales momentum now with BPOS for enterprise agreement customers and the launch planning with Telstra continues to progress well, so I encourage all of our partners to consider how you can grow your own business and better service your customers with the new options for delivery of software+services via Microsoft Online. The article above is a good independent review that gives a good level of detail.

And of course come to the partner roadshow next week for much more info.