Thanks for the heads up.
The mpub format used appears to be just a renamed zip archive containing the book in HTML but I can find no other information about it anywhere in the brief search I have done. Since it appears to be an unprotected html in a standard zip archive, it does not look like there is any DRM on it which would be odd.
I will do some more investigation but suspect it may be possible to use something like Calibre to convert into ePub or PDF fairly easily.
I've been looking into this too - I've found the WHSmith app pretty much unusable thanks to crappy page control and lots and lots of freezing/crashing out.
I've added an entry on the Wiki at Mobileread.com with all the basic info on the MPUB format that I've found so far; who created it, why, where the files are found in Android and the structure of the file - feel free to add to it (infact, please do as I'm not sure what to do next! [Have been considering writing a reader, but not sure how you'd handle the paging]):http://wiki.mobileread.com/wiki/Mpub
Link back to another thread on the topic:http://www.mygalaxyt...h-smith-ebooks/
Edited by Jibble, 05 February 2011 - 07:56 PM.