When Firemint, the creators of the popular iPhone air-traffic-control simulator Flight Control, began working on a version of the game for the iPad, the company decided to move beyond the tablet’s roomy screen and into the third dimension.

The new version is called Flight Control HD and available now in the Apple App Store includes a new airfield that looks best if you are wearing a pair of red-and-blue anaglyph 3-D glasses.

However, players eager to experience the new multidimensional airfield will have to pick-up their own set of 3-D viewing glasses, said Alexandra Peters, community manager at Firemint.

“It’s more of a quirky surprise more than a big selling feature,” she said. “They’re the low-tech glasses so they are easy to find on Amazon.”

The iPad version, which costs $4.99 to download, allows two players to do battle with one another on a split screen. Players can also play against each other using multiple devices, including iPads, iPhones and iPod Touches, over a Wi-Fi network or Bluetooth.

Firemint, which is based in Melbourne, Australia, has posted a preview video on YouTube, though it doesn’t show the 3-D airfield.

Opera Software on Tuesday announced that it is submitting its Opera Mini Web browser to Apple for use on the iPhone.

The Norwegian company boasts that Opera is the most-used browser on mobile devices; it offers a version of the software for Windows Mobile phones, Google Android and the Nintendo DS game system.

The Opera team said they are confident their new browser will be approved for the iPhone, but the final say is still up to the gatekeepers at Apple who are known to block applications in the iTunes store for any number of random reasons.

Last week I had a chance to sit down with Opera’s co-founder, Jon Stephenson von Tetzchner, to see an early version of the new iPhone software. The new browser loaded pages extremely quickly, as you can see in the video below, and manages to integrate some unique features that are currently available in its desktop browser. Some of the highlights include unlimited tabbed browsing and the ability to search the content of a Web page — an important feature that is currently unavailable on the Safari mobile browser made by Apple.

The software was missing an important feature on the iPhone: the ability to resize a page by pinching a page with both fingers.  Mr. Tetzchner said this could be added to the software with a later update.

The Opera browser loads Web pages rapidly by using a technology called server-side rendering, which compresses most aspects of a Web site on a server, sometimes reducing the load time of 90 percent of a Web page, before sending the data along to a phone’s browser.

Mr. Tetzchner pitched the new Opera browser as a way to reduce roaming charges when traveling.

Opera Software says its mission is to make a browser for any computer and mobile phone.