Opera Software released version 7 of their browser, including a special rendering mechanism for small screen.
Developers can see how their sites will look in small devices (mobile phones) from their desktops.
Content reformatting - Instead of presenting table content in columns and rows, tables are reformatted into a one-dimensional structure that better fits smaller screens. Opera can selectively scale down large images or remove those that are superfluous, as well as some other tricks that make the pages fit small screens. And as a result, the user has no need for a horizontal scrollbar.
The Opera website has links to Ericsson and Nokia pages with pics of Opera being used in their mobile phones.