According to the Register, GMail users will be able to switch off the default email threading 'within the next few days'. 
http://www.theregister.co.uk/2010/09/29/google_unthreads_gmail/
Awesome news, I prefer mine 'normal' and unthreaded.

http://www.theregister.co.uk/2010/09/29/google_unthreads_gmail/
Awesome news, I prefer mine 'normal' and unthreaded.
