Selenium 2.0 released in June!

This is awesome news, now hopefully we can run everything via the new selenium server including Grid!
And via ruby 1.9.x

From Selenium HQ.

Selenium Server (formerly the Selenium RC Server)

The Selenium Server is needed in order to run either Selenium RC style scripts or Remote Selenium Webdriver ones. The 2.x server is a drop-in replacement for the old Selenium RC server and is designed to be backwards compatible with your existing infrastructure.