Last month, I flew with Singapore Airlines to NYC. During the flight, three female flight assistants gathered around me (much to my girlfriend's dismay), showing a lot of genuine interest in my Sony Reader, and asking very specific questions (how much built-in memory does it have, where can you purchase the e-books, how long does the battery last, etc.). They all said they had to get one as soon as they got some time off.
Yes, the Sony Reader can impress girls.