Rails - Jun 2006 - Back Button Blues?

I know that this subject has been brought up a few times in this forum, 
and I have seen the ONJava.com article (plan to print it out and read it 
entirely after work). Most of the posts are from at least 4 months ago. 
Has there been any development in this area? Are there any example sites 
out there that use the ONJava example, or another example... or better 
yet has anyone written a RoR plug-in using the ONJava source code?

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