Ever try really hard to get firebug working in your capybara window so you can sleep 1,000,000 in your test and play around on the console?
If so, you can now use the “capybara-firebug” gem.
If you’re trying to optimize your site for different mobile
browsers, there’s an emulator called “Ripple” that is magic. You can check out what it would look like on various screens, and if you happen to be using PhoneGap you can trigger events.