iPhone apps and ereader shopping

Do I want Papers or Write Room for my iPhone? Will it be useful? (I have both apps on my MBP.)

Or would an ereader of some sort be more useful? How do you justify the large upfront cost of one? If a Kindle has the highest availability of stock.. then that makes most sense. The Kindle DX makes more sense for PDF access.

Author: Histamine Queen

Nerd, wife, knitter, writer, cat mom, and comic book reader w/masters of science in Applied Sociology. I have histamine intolerance, lots of food allergies and sensitivities - including gluten. And I have multiple sclerosis fibromyalgia, asthma, drug allergies, and migraines. Basically, I have a collection of invisible chronic health problems. I don't just survive these things, but sometimes I do hate them because I see doctors so often that keeping healthy and staying full time employed is currently impossible.