Interesting update. I've loaned my PRS+ hacked 505 to a friend who wants to buy an ebook reader (it's just a test drive, I have no plans to sell it at this time).
I've been trying to explain all the options for readers currently on the market and those that are soon to arrive. It's a little overwhelming. He was thinking about an iPad but after seeing my Kindle he definitely wants an e-ink screen (though he may still get an iPad).
Tomorrow, I'll give him some real playtime with my Kindle (so far he likes the screen of the Kindle better than the 505 and I'm just the opposite

).
So a Semi-Grand Experiment is underway.