Asides from the entertainment value, this is also a reminder for people to stop using outdating browsers :stare:
Nothing outdated about Firefox 3.6.23. It's fully patched and released the same day as Firefox 7.0. It can't barrel roll (but can askew)
Nothing outdated about Opera 11.52. It can't barrel roll (but can askew)
Nothing outdated about IE8 on XP. It's fully patched and supported since IE9 won't run on XP. It' can't barrel roll or askew
I'm certain I can find many other browsers (links2

) that it doesn't work with that aren't outdated. As much as I love Google, Google is notorious at user-agent sniffing (Gawd, that week back when where Google decided that because I was using Opera I MUST be using the mobile version and would only serve me mobile page :swear:).
Windows 8 looks almost identical to Windows 7 except the Explorer which now has a ribbon on it. It's ugly, sure, but not a reason to boycott the os :huh:
If you could infinitely stay in Windows Desktop, I'd agree with you, but seeing how everything throws you to Metro, it's annoying as hell. You shouldn't need to use a registry hack just to have your OS not be bipolar.
Of course this is just the Dev preview, and it may change in the final release, but MS is being such a dillweed refusing to answer the question as to whether Metro will be officially disable-able in the final release DESPITE it being the most popular question.
On a side note, the ribbon bar is also kill-able through turning off RPEnable in the registry (not certain if it's the global RPEnable or the user RPEnable)