> 3) Is is possible to "move" my installed gems from MRI Ruby1.8.6 to
> JRuby without having to touch the network.  All I have is a 56.6k modem,
> and Downloading rails again is a 4 hour job. (BTW: Is there a way in
> general to download a gem and not install it? For example could I get
> the latest Rails release on my Laptop at work and bring the files home
> to install on the desktop?)

install of doing a gem install you could do
gem fetch gem_name
then
gem install gem_name.gem
jruby\bin\gem install

Also the "pik" gem might be useful for you if you like going between 
ruby implementations a lot.
http://github.com/vertiginous/pik/tree/master
GL!
=r


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