strangely enough, I've avoided the upgrade thus far *because* of the font-rescaling issue - I happily read through a few books with the screwed up tiny font size before finding out that it was supposed to be quite a bit bigger.
Since then, I've written some scripts using bash tools and calibre to strip formatting and set the font size where I want it, which is a bit bigger than it was, but still smaller than the "smallest" font size. I don't have any trouble reading the font that size, and it means more text per page, so....
If anyone knows of a way to get around the rescaling with 1.4, let me know, because I *would* like the rest of the fixes - but for know I'm happy enough with the "buggy" software
