I see them wherever I go

It seems wherever I go I can spot espresso carts or stands. This cute little mobile one is positioned along the Thames River in London. Can you tell from this photo that it is in the back of a tiny truck of some sort?

Naturally, I can't help noticing some differences between it and the ones I see in the Northwest. If you look at the menu items on the chalkboard, you will see a couple things I don't think I ever saw at an American cart: Flat White and Miso Soup (cut off at bottom). I know what Miso Soup is, of course, although it seems out of place here, but I don't know what Flat White is and it's interesting to me that the price is written in red. I also find it interesting that the owner of the stand didn't think Londoners would know what a Mocha is, because she's written underneath it "Choclaty Coffee".