I think this is the kind of things that manufacturers should be taken to task for.
Yes, I'm being picky, but if you have to convert a file from RTF or TXT to some other format to make it readable, than it is dishonest to say that the Sony Reader "supports" RTF or TXT. Supports should mean, to my ornery self, you can load an RTF or TXT file right on the thing and it will work.
I wish the marketing literature did a better job of differentiating what formats are supported natively (without conversion) and which ones are supported via conversion. This is why I am still confused about whether or not PDF is natively supported, because the blurbs on the Sony website suggest it both ways.
Mostly, I'm just tired of converting stuff.