What do you guys think: Would it be cool to have a diary feature on the Kobo Touch?

In the evening, you lie in bed, but you don't feel like reading. Instead, you grab your KT and write down what's on your mind, what has happenend during your day/week/month. Privately, just to yourself, no Facebook, no friends.

Sketch and a stylus could be used for input, or the virtual keyboard.