21.   Work is continuing on improving the user interface.

22.   And maddeningly inconsistent user interfaces are likely to keep you from singing along.

23.   And so we end up with the user interface of the HP Jornada.

24.   As the folks at Palm Computing have known for years, synchronization is the key to making mobile computers with relatively limited user interfaces extremely useful.

25.   At its heart, and despite slick user interfaces that differ between packages, Linux is still Unix, with all that it entails.

26.   Both require Windows to sync data, but they are relatively mature compared to most sites in this category, and have the best user interfaces.

27.   But they would need some sort of common user interface to the network.

28.   Caldera contends that Microsoft integrated MS-DOS with its Windows graphical user interface in part to damage its competitors.

29.   Critics of Windows CE often complain that its desktop-derived user interface is too complex and clunky for palm-size devices.

30.   Delphi may well be vulnerable to a concerted assault from a competitor with a more attractive graphical user interface.