Jay is running a survey to get information on usage of partially trusted applications. I wanted to point to it to get it to additional folks... Here's a quote from Jay:

We're running a survey (only takes about 3 minutes) to get some feedback on partially-trusted applications.  How many of you are building them?  What do you think?

Here's your chance to let us know: http://host.ultimatesurvey.com/microsoft/surveys/takesurvey.aspx?surveyid=1030