[mddw]

I agree.

There're some prefixed properties which work on all major browser since forever (on a web scale)... but there're still a draft. Reading the minutes of the CSS group is enlightening : everything is really really slow.

Moreover, lots of non-defined prefixed properties don't break pages at all. Rounded corners per exemple are nice, but not displaying them is not a deal breaker. Same thing for transitions : site using them often provide a javascript fallback for non webkit browser.

If Opera wants to support webkit properties, they have to spoof their UA : lots of mobile website are designed for iPhone and Androïd (yes, that's not ideal, but it's a fact). It's the 00's mess again...