The iPad

One of the big advantages of your parents not being able to read your blog (unless specifically directed to it) is that one can publish freely about Christmas presents.

My Dad is notoriously difficult to buy for. And I don't know why it took a whole freakin' year, but we finally did a test (using Science™) and found that the iBook reader on an iPad actually gets a font size that's big enough for him to read comfortably (in his words: "I don't even need a magnifying glass!")
The Kindle reader on the iPad seems a bit better to me as the iBook reader expands the space between words in a somewhat unreadable manner when you get up to some big type sizes. Looks like a 36-point type-size is about where my dad needs his text.
As soon as he gets Shelby Foote's Civil War trilogy he's not coming out 'till Spring...