Cybook Gen3 PDF - tech documents

I think every engineer, field technician or computer admin sometimes have to read technical documents. When I have to choose between printed book or electronic book, I probably choose printed one. Especially when there is some graph or schema in the book. But what if there is 10 or 20 books? Then I probably choose eBook version and laptop computer (when there is a power outlet there) or good eBook reader.

Since the Cybook Gen3 can display PDF documents with both text and graphics, it's hot candidate for technicians too.