Well, I've been playing.
The Good
Justified Text (No Option to Flip between Justified and left align though)
Folder Support
Page turn Speed - Christopher Anvil's Interstellar Patrol II From Baen won't open with open inkpot and takes ages to turn pages on the default 300 firmware - works fine here
More font size choices
Using the home key as a next page key - Much better position for 1 handed operation although as there is no way to change this it probably classes as bad as well.
Those bloody ADE page numbers covering the text are gone
The Bad
Limited formatting support no page breaks on new chapters, links etc
The Indifferent
It's got a clock
If you shut it down completely the default firmware has to open first before you can select the ebook applications one
Slightly slower opening a book than the default firmware.
The Book View settings are not accessible from inside the book
Anyway, I like it and am going to keep using it as the combination of Justification and folder support far outweights the limited formatting support for my reading enjoyment