The question has been going around recently about the using Disney Online Books on portable devices. The following is the answer to this question from OverDrive Help.
Unfortunately, Disney Online Books are not compatible with most portable devices. These titles require Adobe Flash, which does not work with iOS (iPhone/iPad/iPod touch), Windows Phone 7, or BlackBerry.
If you have a dual-core or better Android tablet Disney Online Books should work just fine (with Adobe Flash installed), but we do not recommend devices with smaller screens. We have successfully tested Disney Online Books on a Tegra 2 device running Android 3.2 and, later, 4.0 with good results.
Note: Unfortunately, Adobe is no longer supporting Flash on mobile devices, so if you didn't already have it installed, Disney Books won't work on your Android device.
Disney Online Books work well on just about any computer as long as Adobe Flash is installed.