is there a "rails" way to redirect if mobile browser is detected?

I want to run a user-agent check but only on my homepage (static_controller#home) I have taken a close look at the code: http://www.arctickiwi.com/blog/mobile-enable-your-ruby-on-rails-site-for-small-screens and it seems close but it never gets tied together, its just method creation... I am open to a jquery method but would prefer ruby/rails over js.

I only really care about iphone and droid...