iPad SDK's surprise: There are no surprises

Developers report lacks of new features beyond support of UI elements for the larger screen

Apple iPhone application developers have taken a look at the nuances of building software for the the larger iPad tablet and find it strikingly similar to building for the iPhone, though with the added benefit of more screen real estate.

"I guess my surprise was there weren't any surprises," said developer Christopher Allen, author of "iPhone in Action" and a founder of the iPhoneWebDev iPhone developer community. "If you know how to do iPhone development, then iPad development is very easy," said Allen. "They're very similar."

[ There may be less to the iPad than you'd expect -- find out what Apple won't answer about iPhone capabilities that the iPad may be missing. | Stay up on tech news and reviews from your smartphone at infoworldmobile.com. ]

Apple released the iPhone 3.2 SDK, which includes an iPad emulator and iPad-specific extensions -- covering, for example, additional gestures such as swipes -- to the iPhone SDK, to registered iPhone developers on Jan. 28, the day after it announced the iPad.

"It is very similar to the iPhone SDK except it allows developers to create iPad apps to leverage the increased real estate -- the bigger screen size. Beyond that, there is nothing crazy nor really any new functionality," said Brandan Greenwood, director of client engagement for mobile solutions at iPhone application developer Amadeus Consulting.

The developer of Rackspace's cloud management application for the iPad, Michael Mayo, described the SDK as "just an update to the iPhone SDK."

Developers surveyed by InfoWorld are all focused on using that larger screen in their iPad applications. "There's a lot of things that the extra screen real estate gives you," Allen said.

Rackspace expects to rewrite its application for iPad, even if it does not have to do so, Mayo said. "I kind of am [rewriting it] because I want to add a lot more functionality," such as showing system status of the Rackspace cloud as whole, he said. The iPhone does not leave enough room for this but the iPad does, he explained.

"The hardest part is redesigning [the application]," said Mayo, where a developer must determine what the product will do and how it feels to the user in the new context.

Most iPhone apps already developed can run as is on the iPad, giving iPad users a large library of apps at the product's launch. The iPad includes a 2X virtual button that lets the iPhone apps run at 200 percent original size to fill the iPad screen; otherwise they run at the same size as on an iPhone. Several developers confimed that their iPhone apps ran as is on the iPad emulator.

"Right out of the gate the iPad already has 140,000-plus apps from the App Store. When iPhone came out there weren't that many apps right away and user were slower to adopt. Now it's easier for people to be jazzed about owning an iPad," Greenwood said.

In promoting the revised iPhone SDK, Apple's Web site notes that developers can create apps for both iPads and iPhones using a single binary. This lets developers use the same code to access capabilities that differ between an iPhone and an iPad, such as UI differences, without having to separately code for each device and then test to see which device is in use to determine which code segment to use.

"This is actually quite an old technology for Apple," Greenwood noted. "They've been doing it for a while, originally to enable [Motorola 680x0] apps and PowerPC apps to exist, later PowerPC apps and Intel 32-bit apps, and now Intel 32-bit apps and Intel 64-bit apps."

Allen anticipates a 4.0 OS upgrade for iPad and iPhone later this year, likely in June at the Apple World Wide Developers Conference, when Apple historically announces new iPhones. "There're some hints. Apple usually does a major rev every year," he said.

This article, "iPad SDK's surprise: There are no surprises," originally appeared at InfoWorld.com. Follow the latest developments on mobile computing, Apple, and the iPad at InfoWorld.com.

Read more about developer world in InfoWorld's Developer World Channel.

Join the PC World newsletter!

Error: Please check your email address.

Tags apple ipadiPad

Our Back to Business guide highlights the best products for you to boost your productivity at home, on the road, at the office, or in the classroom.

Keep up with the latest tech news, reviews and previews by subscribing to the Good Gear Guide newsletter.

Paul Krill

InfoWorld
Show Comments

Most Popular Reviews

Latest News Articles

Resources

PCW Evaluation Team

Azadeh Williams

HP OfficeJet Pro 8730

A smarter way to print for busy small business owners, combining speedy printing with scanning and copying, making it easier to produce high quality documents and images at a touch of a button.

Andrew Grant

HP OfficeJet Pro 8730

I've had a multifunction printer in the office going on 10 years now. It was a neat bit of kit back in the day -- print, copy, scan, fax -- when printing over WiFi felt a bit like magic. It’s seen better days though and an upgrade’s well overdue. This HP OfficeJet Pro 8730 looks like it ticks all the same boxes: print, copy, scan, and fax. (Really? Does anyone fax anything any more? I guess it's good to know the facility’s there, just in case.) Printing over WiFi is more-or- less standard these days.

Ed Dawson

HP OfficeJet Pro 8730

As a freelance writer who is always on the go, I like my technology to be both efficient and effective so I can do my job well. The HP OfficeJet Pro 8730 Inkjet Printer ticks all the boxes in terms of form factor, performance and user interface.

Michael Hargreaves

Windows 10 for Business / Dell XPS 13

I’d happily recommend this touchscreen laptop and Windows 10 as a great way to get serious work done at a desk or on the road.

Aysha Strobbe

Windows 10 / HP Spectre x360

Ultimately, I think the Windows 10 environment is excellent for me as it caters for so many different uses. The inclusion of the Xbox app is also great for when you need some downtime too!

Mark Escubio

Windows 10 / Lenovo Yoga 910

For me, the Xbox Play Anywhere is a great new feature as it allows you to play your current Xbox games with higher resolutions and better graphics without forking out extra cash for another copy. Although available titles are still scarce, but I’m sure it will grow in time.

Featured Content

Latest Jobs

Don’t have an account? Sign up here

Don't have an account? Sign up now

Forgot password?