Improvements to iPhone font support in iOS4
June 23, 2010
Update: The latest news on Typekit’s support for iOS devices can be found here.
We’re happy to report that the latest version of iPhone OS, now called iOS, includes a fix for the webfont related crashing of Mobile Safari that we observed in previous versions. As we reported earlier, Mobile Safari on iPhone OS 3.1+ will crash when rendering multiple weights and styles of SVG webfonts. This has been fixed in iOS4 (8A293), making webfonts far more usable. Now, Typekit supports the devices that can run iOS4 — iPhone 4, iPhone 3GS, and iPhone 3G.
This more stable performance is a great step forward for webfonts on the iPhone, but some of the other quirks we found in our testing of earlier versions remain: Mobile Safari still does not synthesize undefined weights and styles from the normal weight of an SVG font, and the text selection behavior of SVG-styled text still feels non-native. For these reasons, we’ll continue to offer iPhone support as an experimental, opt-in feature for now. Likewise, since Apple has yet to release iOS4 for the iPad, support for that device will remain an experimental feature in Typekit as well.
If you’d like to enable Typekit’s iPhone support, just sign in to your account and select the kit you’d like to configure. Then launch the Kit Editor, select Kit Settings, and click on Experimental Features.