Desktop developers are starting to understand that netbooks need different interfaces than workstations -- or even notebooks. The smaller screens on netbooks are a usability challenge, comparable to designing a business card when you're used to creating full-page ads. A case in point is KDE's Plasma Netbook interface, now available in a preview in Kubuntu 9.10. Scheduled for official release in January 2010 with KDE 4.4, the interface is still in development. But it's advanced enough to show the developers struggling with the screen size limitation, sometimes overlooking it but at other times showing enough promise that the main KDE desktop could learn a thing or two from it.