Nit: the lock-in is that other razors don't fit (like apple usb).
Sure, plug-compatibility is trivial, but Gillette had sufficient market power at that point to cut off any retailer stocking them.
Sure, plug-compatibility is trivial, but Gillette had sufficient market power at that point to cut off any retailer stocking them.
In what way did you mean that?
Here's a picture: http://imgur.com/Aweqo.jpg
Technically, if you're willing to risk damaging it, you can force a regular USB device in there, but it sticks out at a weird angle because of the notch.