Dell Precision 7730 - Very robust 17" workstation with flexible configuration options, the cheapest display is not recommended however. Read review here.
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:
iPad Pro - The new iPad. 12.9", keyboard, pencil. A sight to be held.
Google Play Books - Google Play Books lets you search, preview, and buy millions of books using Google Book Search.