I've just finished building a new website for a startup and mobile was a consideration from the start. As a result the page content is all modularised and there is a layout+css switcher for mobile devices. Some of the fancy stuff doesn't work as well or look as good on the mobile site but all the functionality is there - with and without JavaScript (progressive enhancement really comes into its own here). This means that going forward there is only one site and two layouts to maintain, a vast improvement on the last time I tried to retro-fit mobile layouts to a site and settled on a similar solution to the parent which is essentially to build a second site.
I'll echo other posters by saying that
WHY would they put something out with such reduced functionality compared to KDE3.5?
8.04 server is going to be supported until April 2013. Since KDE3.x is probably going to be be long gone by then it was decided to go with the 4.x series for the LTS.
I'm not defending that decision, just pointing out "WHY" it was done.
He has not acquired a fortune; the fortune has acquired him. -- Bion