Hello world for twitter oauth on appengine.
Authenticate with it, and it says hello name
It needs gems from rc-gems.appspot.com, in particular, jruby-openssl.
You can use a Gemfile like mine, but as the contents of the rubygems at rc-gems.appspot.com are experimental.
It might be better to install them locally and then rely on bundler to do the right thing.
For the jruby-openssl gem, that would look like
sudo gem install jruby-openssl --source http://rc-gems.appspot.com -v0.5.2
You also need to supply a config file including your twitter oauth information.
:key: _your key_
:secret: _your secret_
:callback: http://_your_app_.appspot.com/auth
:login_template:
:text: <a href="/connect">Login using Twitter</a>