The note about PDFs is very interesting. I was under impression that Kobo Aura PDF support is not exactly stellar but maybe I got a wrong idea or the PDF support has been improved by FW patches. From the the-ebook-reader.com review (May): "Despite the larger screen size, it does not make for a good PDF reader."
A question for Aura owners: would you recommend an Aura for both general reading and browsing of technical PDFs (e.g. service manuals)? Does the latest FW supports PDF pinch-to-zoom, text reflow and removing of margins?
Edit: I did not catch immediately that this is about the new Kobo Aura.