I also use my EE in the applied mathematics field, but I find it fine for annotating pdfs. But it does not surprise me that IEEE journals are not very suitable, with their 2 columns and small fonts - they should also publish in epub format - this might be feasible because epub is compressed xhtml, and my limited experience with converting latex to html has been relatively successful. I agree that a landscape half of page mode would be very useful.

For me as an academic with over 1000 papers on my EE, the release of Dingo has been fantastic, I can now access things from my library quickly, unlike before. The software/OS has greatly improved since I bought my EE a few months ago.

As well as reading and annotating journal articles, I also find the EE good for proofreading and editing. When I am writing a paper or something similar, I would export it to pdf, open it in the Edge, and read over it, and annotate it (now in a different colour). I would then export as a pdf on a USB stick, open it on my computer, and make the changes.