It currently lists support for text, epub, and mobi formats and it looks as though the developer is working on some other formats.
The application works in conjunction with Dropbox. Your ebooks are stored in a folder you want there, and the application keeps a bookmark for where you’re at in your book that’s updated fairly regularly. If you pick up another device, you just run the application, enter your Dropbox credentials when asked, and read away.
Fabrik has been updated on a fairly regular basis as bugs are squashed and functionality is added, it’s on a fairly fast track to not only being the best cloud-based e-reader out there, but the most useful overall.
All I really need from it still is pdf and cbr format support, before it can replace all my reader software.
Fabrik Reader is available for free at Google Play but will require a Dropbox account (which can also be had for free) in operation before installation in order to function properly.
Download: Google Play