Opera Mini for iPhone to Be Previewed at Mobile Web Congress

However, from the comments:

We have not submitted it yet to the Apple App Store. However, we hope that Apple will not deny their users a choice in Web browsing experience.

There are plenty of third-party web browsers in the App Store. It’s just that the ones that are allowed are ones that use the system version of WebKit. See this piece I wrote back in November 2008 for more on Opera Mini, including why it might be a very cool app.

Wednesday, 10 February 2010