Apple ha rilasciato iOS 4.3, nuova versione del sistema operativo per iPhone, iPod e iPad.

New features in iOS 4.3 include faster Safari mobile browsing performance with the Nitro JavaScript engine; iTunes Home Sharing; enhancements to AirPlay; the choice of using the iPad side switch to either lock the screen rotation or mute the audio; and the Personal Hotspot feature for sharing an iPhone 4 cellular data connection over Wi-Fi.

Soddisfatto il commento di Steve Jobs

"With more than 160 million iOS devices worldwide, including over 100 million iPhones, the growth of the iOS platform has been unprecedented. iOS 4.3 adds even more features to the world’s most advanced mobile operating system, across three blockbuster devices—iPad, iPhone and iPod touch—providing an ecosystem that offers customers an incredibly rich experience and developers unlimited opportunities."

Per quanto riguarda i cambiamenti introdotti il motore Nitro Javascript è stato integrato in WebKit, il layout engine di Safari.  Introdotti miglioramenti per Airplay, l'innovativa tecnologia wireless che consente agli utenti di trasmettere musica, foto e video per Apple TV. Con iOS 4.3 è possibile lo streaming di contenuti aggiuntivi, tra cui video da applicazioni di terze parti e siti web.
Il nuovo iTunes Home Sharing consente agli utenti di riprodurre musica, film e programmi TV su un iPhone, un iPad o un iPod touch, dalla propria libreria iTunes anche su un Mac o PC in una rete locale Wi-Fi.
Più di 10 miliardi di applicazioni sono state scaricate dall'App Store, e oltre 350.000 applicazioni sono disponibili, tra cui più di 65.000 applicazioni native iPad, per i consumatori di 90 paesi.
iOS 4.3 sarà disponibile per gli utenti iPad, iPhone e iPod touch come aggiornamento software gratuito a partire da venerdì 11 marzo. iOS 4.3 è compatibile con iPad, iPad 2, iPhone 3G, iPhone 4 (GSM model).

Microsoft ha rilasciato la release candidate della nuova versione del suo browser Internet Explorer 9.

The IE9 RC includes a number of important improvements consistent with our vision of delivering an all-around fast browser, one that puts the focus on your sites, strengthens our commitment to privacy and security, and delivers on our the commitment to developers to enable them to use the same markup and site-ready HTML5. For example, the IE RC includes:

• Significant performance improvements in browser speed which, according to the WebKit SunSpider test, is now 35% faster than the IE9 Beta. Coupled with IE9’s innovative approach to graphics processing through hardware acceleration in Windows, IE9 is truly an all-around fast browser opening up opportunities for developers to create rich new experiences.
• Numerous enhancements to the user interface such as new ways of handling notifications, the ability to place tabs on their own separate row, and enhancements to the already powerful site pinning functionality.
• Support for additional HTML5 and web standards including Geolocation, and semantic tags.

Il download di IE9 RC è possibile da questa pagina.

Rilasciato Google Chrome Dev 10.0.612.3 per Windows e Mac OS X, e Google Chrome Dev 10.0.612.1 per tutte le piattaforme (Windows, Linux, Mac OS X)

This release fixes several crashes as well as:

All

• Updated WebKit - 534.15

Windows

• Google Cloud Print sign-in interface is now out from behind a flag and can be found in Under the Hood (Issue 60092)

Mac

• Various minor tweaks to tab overview mode (Issue 50307)
• 25% less logspew when loading the PDF plugin
• Sandbox the GPU process (Issue 48607)
• Experimental popup blocker animation
• Fix stuck hover state in bookmark button (Issue 27073)

Known Issues

• There is no space between the Apps- and the Most Visited-Sector (Issue 67073)
• The expanded Apps-Sector becomes unvisible after clicking on it (Issue 67075)