I'm having problems with the JSON in the Windows Phone async client.  I don't think it's decompressing properly, as I my JSON string looks like this:  "�\b\0\0\0\0\0\0�\a`I�%...".  This happens for any call.

Any ideas what I'm doing wrong?

This just turned out to be a problem with my windows firewall.  If you have similar issues, try to turn off your firewall.

Thanks to Luke for pointing me on the right path.