Umm... I'm not sure what you're asking for. "Binary Prefixes?" That's just what we have, isn't it? 228 512 byte blocks is just that, right? 

 As for the nbsp... I haven't the slightest idea what the reasoning behind that is, but it makes it harder for people who actually do edit this article, not the people who come by and put "nbsp" in everywhere. Believe me, if I had any idea how to combat this, I would work to get the spaces removed altogether... "333 MHz" and "768 MB" looks incredibly stupid.