IPv6 test sites

Here's an overview of sites that can test your IPv6 connectivity and give a bit more information than "you're connecting over ...":

• http://www.appelboor.com/ipv6.html hard core IPv6-test site, no frills, links to a nice iGoogle Gadget "IPv6 Checker"
  
• http://test-ipv6.com/ beautiful IPv6-test site which does see Teredo IPv6 connectivity on Windows Vista and Windows 7, but strangely enough awards 0 points for that
• http://ipv6-test.com/ beautiful IPv6-test site, including a speed test, but does not see any Teredo IPv6 connectivity on Windows Vista and Windows 7
• iGoogle Gadget "IPv6 Checker" is here : runs embedded in your iGoogle (www.google.com/ig). Shows details about your IPv6, including Teredo and name resolving
  

HTH