Ideas in no special order

* Per-repository settings like enabling of
  watch/edit/lock features

* Log dialog option: Show only tagged revisions

* Log dialog option: Show only your revisions

* Log dialog: Allow to select latest on branch

* Multi Log view

* Implement "Add to .cvsignore"

* cvs init

* Implement a nice workaround for $CVSROOT/CVSROOT/cvsignore

* Maybe use ui files for dialogs

* Watch open working copy directory for changes (KDirWatcher)

* Automatic 'cvs -n update' in specified time intervals (QTimer)

* Add commit message to ChangeLog file (checkbox in commit dialog)