Importance of browsers to business

If you're a web developer, you already know this: Don't ignore the variety of browsers out there and keep an eye on the handheld devices. Some organizations standardize their web apps for one browser; big mistake: http://www.infoworld.com/t/browsers/ignoring-your-businesss-browser-thats-mistake-873?source=IFWNLE_nlt_daily_2009-05-19