"Sad, in this day and age, that your article is so unnecessarily US-biased."
I'm not sure what argument you're trying to make, except perhaps that the writer of this article ought to have written everything catering to you. Your evidence that the piece is "US-biased" is that you haven't heard of the things he mentions. Is it his fault that you haven't heard of any of these things? Is he supposed to replace "411" with local equivalents for every country on earth, or just the UK, since you happen to be in the UK, and you're more important than anyone else?
When I read The Register or the BBC's web site, I don't expect them to write from a U.S. point of view, or to avoid refereneces to things from the UK, or to spell "color" the way I spell it, or anything like that. So why should a U.S. writer be expected to write from a U.K. point of view?
Over here in England, technology has finally arrived. One family just outside London now has a "computer", and two people in my very street now have flushing toilets. We're not that far behind you!
You then go on to sarcastically mention how technology is arriving in the UK, as if he implied or assumed otherwise. There's nothing in his article to suggest that, so apparently you just assume that he (or all Americans) think the UK is backwards, and it's your job to correct us, and in so doing imply that we're idiots.
You're being both illogical and rude.