In recent days I've changed this website in several ways to make it more smartphone-friendly:
I've simplified the layout by removing the Download and User login panels.
There's now a Download button in the main menu, which opens a page containing the links to the download pages.
And to log in you now press 'Log in' (top right), upon which a login page opens.
Furthermore, the website can now be viewed in three different ways, via so-called themes.
These can be selected via the Theme panel at the bottom of the page: