I don't know if there is already one of these, if so just lock it, but I couldn't see one and thought it was necessary.
I've been reading the forums and there's a lot of "it doesn't do this" and "how do I get this on it" posts, with no thought for all the hard work that went into making this device possible. Well, I received mine today and have spent all day playing with it, and it's exactly what I wanted and expected. So thanks, Raspberry Pi Foundation! Keep up the good work, I hope to be able to help in a small way once I come up with a project.