How is WP8 going to break the web? They have something like 2% of the market, which is hardly a monopoly that can be swing around.
Also, are the IE shenanigans news to anybody? There does seem to be a contingent of fresh-faced webdevs who think Microsoft's reputation for evil is overblown. It wasn't; they certainly did a lot earn it.
Unfortunately when a website is built with the requirement to support as many people as it can, even 2% will cause things which make incompatibilities to be taken off the table.
Also, are the IE shenanigans news to anybody? There does seem to be a contingent of fresh-faced webdevs who think Microsoft's reputation for evil is overblown. It wasn't; they certainly did a lot earn it.