I haven't been able to find anywhere a mention of what fonts are supported on the sony reader. With an rtf or pdf, I'd guess that you've got some options when it comes to font choice and I was wondering if anyone had already done some investigation that might save me some time.
I looked at a few of the books that come with the reader and they all seem to be mostly formatted in something with a serif (most likely times) and couldn't find any way to change them. However, there are certainly a few places including menus that use a sans-serif font.
As a side note, I went back to a few paperbacks and noticed that all the ones I randomly pulled used serif fonts. I guess I never really noticed the fonts before, but last night I found myself wondering if the text might be more legible on small size in something like Arial.
I've really enjoyed reading about everyone's experiences with the reader and have loved mine for the 2 days that I've had it.