purple_platypus

That's part of why they're dropping Presto for Blink, I think. One of the blogs I read on it mentioned that a lot of time and money was going into keeping Presto up to date with what developers were doing (such as ignoring anything not webkit on mobile). Switching to Blink will give them more resources to pump into UX.

The desktop browser has the same thing (under the term Opera Turbo). Really useful when you're on a bad connection.

I wouldn't say they're all that terribly behind. I use Opera daily and rarely have issues with websites. The last really big issue I remember was the Twitter fiasco when they found out Presto wasn't prepared for a Javascript file that was larger than average and only had a single statement because replacing semicolons with commas became the cool thing to do.