Developers should be getting ready for Sandboxed Solutions in BPOS SharePoint 2010. 

Here's some background:

One of the ways we can think about Sandboxed Solutions in relation to SharePoint 2007 is that they are very similar to 20 site administrator templates available in the Fab 40.  These were templates site administrators could simply upload and then use to create new sub-sites.  In SharePoint 2010 Sandboxed Solutions are actualy WSP's that site administrators can upload.  IT can centrally control what it decides site administrators can deploy and then carefully control how these solutions run and the resources they consume.  That makes them an attractive alternative to server side solutions that are deployed to a SharePoint web applications and activated as Features on Site Collections.  Because BPOS 2010 supports Sandboxed Solutions developers should be starting to think about -

1. How they design, develop and deploy if they are a developer internally at an organization
2. How they will design, develop, deploy, market and sell if they are an independent developer or an Microsoft ISV

Link for Developers on Sandboxed Solutions and BPOS SharePoint 2010

A good place to start is Channel 9 from Microsoft.  I highly recommend that you take a look at this link and watch / read the material referenced therein.

More to come on SharePoint 2010, BPOS and Sandboxed Solutions.

http://channel9.msdn.com/learn/courses/SharePoint2010Developer/SandboxedSolutions/

Creating resources such as projectors, conference rooms, or training areas helps reduce double booking and other conflicts.  Exchange Online Services through your BPOS account by Microsoft Online Services allows you to create a shared resource such as a conference room or projector.  Doing so is easy and once created these resources can be seen in both the Outlook desktop client in the calender area as well as in Outlook Web Access (OWA) by setting up a new meeting, adding the resource as an attend and checking the associated free/busy information. 

Here's a short screencast on how to create the resource object in Exchange Online Services.

Creating a new administrator user for your BPOS account or modifying an existing user to grant them administrative privledge for your Microsoft Online Services Administrative Portal (https://admin.microsoftonline.com) is easy.  Watch the screencast tutorial below to find out how to designate an existing user as an administrator or how to create a new administrator user.