"Microsoft Office Live will launch an Early Adopter phase for US Partners later this year giving participants access to the upcoming version of Office Live. This new version is based Windows SharePoint Services (version 3) offering increased functionality to customers and partners. We are currently taking applications for this program from Microsoft US Partners. A list of criteria to meet is included below. If this sounds interesting to you, then please apply online by September 15, 2006! You can learn more about the partner opportunity on Office Live by downloading the Office Live Developer Guide. If you are not a Microsoft Partner, it's easy to register and join the program." (Emphasis is mine)
So if you are using Office Live and want to get in on the fun, you need to visit this page and complete the Early Adopter Program application. As Dare mentioned earlier in the week, hopefully the launch of Google Apps for Your Domain will see the Office Live team removing some of the limitations they impose.