I design web apps mainly for desktop use (not PDAs, phones etc) by co-workers and customers. As more users become equipped with 16:9-type screens the traditional screen layouts are no longer ergonomic.
For example, a long vertical navi bar might not fit completely or a complex form might need to be scrolled in order to move to the next input field.
How are you coping with this development? Are you spreading out more horizontally or sticking with the old layouts? Is it not really a problem?
UPDATE
Thanks for all the replies. I have found them useful. Here are some thoughts which occurred to me:
I take the point that the 4:3 format may still be the most widely used, but I expect that to change.
Also, most users I visit here in the company have all their windows maximised (really!) so the idea of sizing the browser to fit the content doesn't help there.
In my case, most web apps involve search and display of information or data entry (some of which can involve large and complex forms). It's mainly the data entry apps which I'm concerned about. Perhaps AJAX and Tabbed controls might be a way forward there.