Until now, iPhone applications that wanted to display content had to use a separate, slower Apple browsing technology from the one employed in the mobile version of Safari.
That could be a big deal for both rival browsers such as Chrome, Opera and Dolphin as well as for other apps that display lots of Web links, such as Twitter and Facebook.
“So overall we’re cautiously optimistic,” Kleinhout said. “It looks promising, but we only know if there are no caveats when everything has been implemented and tested.”
Developers have been generally pleased with increased openness from Apple, including the opening up of Touch ID, support for third-party keyboards and the new extensions allowing apps to talk to one another.
However, Kleinhout and others point out one big thing that is still missing on iOS: The ability to set a browser other than Safari as the default for showing Web pages.
This article originally appeared on Recode.net.