Hi Barnaby,
You are correct. The Google Street View Widget 1.1 is not working in IE for me either.
I made a test case here:
http://www.tapasdas.com/Maps/Phones/app16/
When I try to run this application in IE and activate the Google Street View Widget, I get this error message:
checkForSVpano: ‘console’ is undefined
However, as you said, this works fine in Chrome and Firefox.
Best regards,
Tapas Das
GIS Programmer/Analyst
Maricopa County
602.506.1088