Hmm. It does look too similar to be a coincidence.
But... I don't think Apple's designers and managers are idiots. As with the "iPhone" trademark, I suspect they felt it would cost less to let SBB contact them if there was a trademark involved and set their price (although how you "trademark" a machine's user interface I've no idea; trademarks are usually static images).
I also can't help noticing a pattern emerging here. I wonder if SBB said "No," knowing full well that they'd get a ton of free publicity by doing so and demanding Apple pay them on their own terms. (And by "their own terms", I suspect they first had some meetings with Apple's people to decide what those terms would be.)
Whatever you may think of Apple, "incompetent" isn't a term you can apply to their management team. There's more to this than meets the eye.