Of course most kde apps have also to change GUI and strip down features for small devices. While the plasma widget system may be ready for very small form factor devices the apps are not ready.
In the future kde plasma mobile can be an alternative to the then running meego system.

http://www.notmart.org/index.php/Sof...mobile_Tokamak

Bye Thorsten, who hopes for KDEs akonadi (advanced personal data caching based on IMAP) support for mail, bookmarks, ... for Maemo/Meego