[SensualPoet]

Great question.

I have the Sony e-reader installed but I don't and have never had a Sony. I'm not sure how I ended up there -- probably fooling around to see what the PC reader looked like. I installed Adobe Digital Editions around the same time, and perhaps as a result of adding Overdrive to access library books. However, I later deleted ADE and the Sony version receives the library books automatically -- since it is already a rebranded, customized version of ADE.

The Sony software doesn't seem to recognise the Kobo and, in any case, since I have reinstalled ADE, I've discovered the interface of ADE is actually easier to use than the Sony (without a Sony device). ADE offers the Kobo, allows drag 'n' drop, allows me to access the same directory on my computer for purchased (or non-DRMed ePub) titles.

To keep it simple, I'd be inclined to delete the Sony software and stick with ADE and Kobo -- ADE to manage the device, Kobo to make purchases and do the syncing thing (which you have to have to ensure firmware updates are installed). And by making a desktop shortcut to the ADE directory, anything your mom downloads from, say mobilereader or Gutenberg in ePub, can go directly there which can then easily be shuttled back and forth to the Kobo.

The Kobo bookstore promise is to embrace titles available in each local market and, with Indigo representing Canada, you can be sure anything ePub by Canadians will be there ... I am not sure that applies to the Sony bookstore. Down the road, you can always introduce a second or more commercial suppliers if that strategy isn't adequate.