Member John B posted a tweet mentioning this.
I've certainly seen this before in the field but I am not sure how commonplace this is.
Here was John B's example, with his company's name on a card reader:
On the plus side, it is certainly good advertising. On the negative side, I could see some clients demanding it be removed. One major example comes to mind is Target. I am pretty positive they go out of their way to strip / hide any camera branding.
What do you think?
Also, vote: