Off the topic of BPOS and onto SharePoint 2010.  Found this great link today on configuring remote PowerShell. So I thought I'd share.

http://blogs.msdn.com/b/varun_malhotra/archive/2010/06/10/configure-power-shell-for-remote-use-of-sp-2010.aspx

SharePoint 2007 is a platform - it's not just about sharing documents - it is also a presentation layer for other data (from ERP systems, cubes, etc) and an application hosting platform for your own custom .net application and Microsoft products such as Project Server and Commerce Server. 

One of the common questions customers ask about BPOS SharePoint is its power to host "applications" - of course in a shared hosting environment there are more limitations than possibilities.  Recently I got asked about the potential of hosting Project Server on top of BPOS.  The short answer is not yet, but there are some rumblings that this will be made available at some point.

Until then after some research I found a highly recommended "PaaS" (Project Server as-a-Service) offering for SharePoint 2010 / Project Server 2010 beta via Project Hosts.  I saw a demo and looks well thought out, though the BI Center was not working against Project Server data quite yet.