Hi. Just wanted to share my own experience with the Edge.

I work at a research center and my job involves a lot of applied math. Probably the one thing I use the most is the journal. I use it for mathematical derivations, or write ideas to try etc. Recently I have found that the calendar can be used quite nicely as a sort of research diary... I just wished the journal supported text entry and handwriting search...

I also find it useful to read books, highlight them and annotate them. If you read mathematical stuff that need derivations you can take a snapshot of the page to show it on the LCD, then go to the journal and do your derivation. Then you can just go back to the book and put a link to the journal on the book. This is very convenient.

Regarding journal papers, as long as they are not multicolumn, is great. Unluckily most journal I read are multicolumn (entire IEEE). You need to zoom in one of the columns. However the pan tools are so bad that makes it very difficult. If at least we had landscape mode of the eink! For multicolumn it may be better to just open the PDF on the LCD side. I wish they gave the option of using the ereader on the LCD so that we could annotate and highlight on the LCD as well.

I dont usually type notes on the LCD. However, recently I have been using thinking space to organize ideas and plan some things to do.