If you're using Selenium, you're flying blind without some way to see why a test failed. This gives you proof of what happened: no need to have any more of those appalling sessions around the whiteboard listening to pet theories. Priceless. This is from the guys at YouDevise, who I spent a day with before xmas. Sitting down at a dual-display Ubuntu machine, hacking Ant – was a lovely antidote to Windows and NAnt.