Bug in full screen
Havent loaded a lot of books to see if DRM-free books give errors, but I have noticed that when the reader is in full screen mode on Lion and you click on the "Library" button it drops out of full screen but stays in the book. If you then click on the Library button again, the app crashes.
The text is good, and the columns are nice. But it would be better if the actual column widths respected reasonable widths for reading. So if you are in zoomed or full screen display and go to one column, the lines of text are too long, which is bad for reading. Instead, it should white-space the margins, like "reader" mode does in Safari, to keep the line length better for natural reading.
Also, reading postion seems to be based on chapter starting points, not the actual place in the book last read -- like a book mark. This should be addressed right away! Additionally, some form of marking and noting should be added in some future version.
Good start -- keep going!
Feral_Peanut about Kitabu