Epub is a format readable on various mobile devices, but is particularly recommended for iPhone owners, whether they use a PC or have a Mac.
To transfer files from the computer to the device and to read the files, you can use Room . Download is free.
More information is available on Wikipedia.
Mobipocket is an ebook format recommended for those who own a Blackberry or a device based on PalmOS, Symbian and Windows Mobile. Amazon Kindle and iRex Technologies iLiad also read these files.
From the manufacturer's website ( http://www.mobipocket.com ) it is necessary download the software to transfer the files from the computer to your device, and also the one to read them. Download is free.
More information is available on the Wikipedia
