I saw my first Kindle last week on public transportation, a black one. The bus was coming from university. Usually I see mobiles, iphones and alike gadgets. Ereaders are not trendy yet. Masses just recovered the iPhone and internet-on-mobile (!!) rush. They need time to understand these new devices
Since we are already heading towards winter, I think I won't see them much in near months either.
Perhaps in cafes, hopefully yes.