I know this is a ridiculous request, but, wow, do I ever wish this Firefox add-on called TidyRead could be implemented in tear! It "intelligently extracts the core text of news articles and blog posts" and makes reading them super-easy. It has built-in font/background buttons and it re-flows the text. It accomplishes "Fit Width to View" like in MicroB but much, much better for reading text. I bet it would be much faster, too, since the page rendering doesn't have to deal with images or anything else other than text.