Rated 5 out of 5 stars
Peter, I want to thank you very much. Always wanted to have such functionality
Features/options I miss and suggest to add, if you have time:
1) Justify text in columns (narrow columns look ugly and are hard to read, when text is left alignt).
2) Switchable fading on top/bottom of the page.
3) Configurable font size and style (some fonts only look good in small sizes in bold).
4) Newspaper display mode (fill columns with text starting with the leftmost one, not the center one; scroll pages - sets of columns relative to current windows size, not text. Currently only PgUp/PgDn allow for such behaviour, but pages are not visually prominent, and text columns are assigned to different "screens" when I reached the end and skip screens back with PgDn)
If only justification would be added, I'd call this the most useful addon for me.
Anyway, great job!