calibre - Ebook manager, viewer & converter
System76 Oryx Pro - System76 Oryx Pro is a powerful and customizable laptop that comes with Linux pre-installed, but y can easily install Window and dual-boot if you want to use it for Windows development or gaming.
FBReader - FBReader is an e-book reader for various platforms. Features:
Dell Precision 7730 - Very robust 17" workstation with flexible configuration options, the cheapest display is not recommended however. Read review here.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.
HP ZBook 17 - The performance of a desktop with the freedom of a laptop.