Question: Of the mobile browsers that use WebKit as its engine , which one was first released on the Mac OS X Panther ?

text: Mobile browser
Popular mobile browsers -- Default browsers for Mobile and Tablet

A mobile browser is a web browser designed for use on a mobile device such as a mobile phone or PDA. Mobile browsers are optimized so as to display Web content most effectively for small screens on portable devices. Mobile browser software must be small and efficient to accommodate the low memory capacity and low-bandwidth of wireless handheld devices. Typically, they were stripped-down web browsers, however, some recent mobile browsers can handle latest technologies also such as CSS 3, JavaScript, and Ajax. Websites designed so that they may be accessed from these browsers are referred to as wireless portals or collectively as the Mobile Web. They may automatically create mobile version of each page, for example the Wikipedia website.
Browser Creator FOSS Current layout engine Software license Notes
Amazon Silk Amazon.com Some Blink proprietary and LGPL Uses split architecture whereby all processing is performed on Amazon 's servers
Android browser Google Yes WebKit BSD and LGPL Browser included with Android version 1.5 to version 4.1
BlackBerry Browser BlackBerry Ltd Some Mango ( ver 4.5 , 4.6 , 4.7 , 5.0 ) Webkit ( ver 6.0+ ) proprietary and LGPL -
Blazer Palm No NetFront proprietary installed on all newer Palm Treos and PDAs
Chrome Google Some WebKit , Blink ( versions 28+ ) Freeware under Google Chrome Terms of Service , but uses components from the Chromium ( web browser ) project Installed as default on Google devices shipping with Android versions 4.1 ( Jelly Bean ) or higher
Dolphin Browser MoboTap No WebKit proprietary installed on all Bada
Firefox for Mobile Mozilla Yes Gecko , WebKit ( iOS version only ) MPL Currently released for Android and iOS , but default browser for Firefox OS devices ( now discontinued )
Internet Explorer Mobile Microsoft No Trident proprietary on Windows Phone and Windows Mobile only
Iris Browser Torch Mobile Some WebKit proprietary and LGPL Acquired by Research in Motion - No longer supports Windows Mobile or Linux
Kindle web browser Amazon.com No NetFront proprietary Labeled experimental
Microsoft Edge Microsoft No EdgeHTML proprietary on Windows 10 Mobile
Myriad Browser Myriad Group Some Magellan ( ver . 6.x ) Fugu ( ver 7.x ) WebKit ( ver 9 ) proprietary and LGPL Acquired from Openwave in 2008
NetFront ACCESS Co. , Ltd Yes NetFront proprietary -
Nokia Series 40 Browser Nokia Some WebKit proprietary and LGPL -
Opera Mini Opera Software No Presto proprietary Capable of pre-processing web pages and formatting for small screens
Opera Mobile Opera Software No Presto , Blink ( versions 15+ ) proprietary Capable of reading HTML and can reformat for small screens
PlayStation Portable web browser Sony Yes NetFront proprietary -
Polaris Browser Infraware Inc Some Lumi ( Ver . 6.x ) WebKit ( Ver . 7.x ) proprietary and LGPL Nokia , Samsung , Kyocera and other phones sold in the US , China , South Korea , etc
S60 web browser Nokia Yes WebKit LGPL on S60 phones ( predominantly Nokia )
Safari Apple Inc Some WebKit ( WebCore ) proprietary and LGPL on iOS ( iPhone , iPod Touch and iPad )