Try the New Cloud Based Ruby Testing Framework Devver if You Need to Speed up Ruby Testing
Devver takes the combination of all of the tools that developers use at their desktop and convert them into cloud service. Currently, they emphasize Ruby tools and testing. They have a plan to release an open API so that developers can use it for additional service like Python, PHP and Java languages. Currently, they are offering the service free in private beta release. The company claims to finish test as fast as 1/3 rd time that developer takes to test at their machines.
LiquidTest
Molybdenum is a visual test tool to test web application. The software version 0.7.1 is compatible with Firefox 3.1. It is based on Selenium and you can use it as add-on to your Firefox browser. The software is developed under license from Apache License 2.0. This tool simulates the user action to the Firefox browser. You can download the software from