"Google loves to characterize Android as open and iOS and iPhone as closed," he said. But that's a "smokescreen to hide the real issue of what is best for the customer: integrated versus fragmented."
After the comments, Google's Android chief, Andy Rubin, took to Twitter for the first time to defend Android in a compressed retort only a geek could love, or even understand: "the definition of open: 'mkdir android ; cd android ; repo init -u git://android.git.kernel.org/platform/manifest.git ; repo sync ; make'"
A Google spokeswoman said Mr. Rubin's message is a computer command to download the Android source code and start developing.
The message lists the commands needed to start creating a copy of Android on a computer running the Linux operating system.
Meanwhile, a developer caught up in this week's crossfire also weighed in. Mr. Jobs cited the example of TweetDeck, a program used by people to access Twitter, to argue that Android fragmentation is a problem for app developers. But Iain Dodsworth, CEO of TweetDeck, took to Twitter to defend Android.
"Did we at any point say it was a nightmare developing on Android? Errr nope, no we didn't. It wasn't," he wrote. Later he added, "We only have two guys developing on Android TweetDeck so that shows how small an issue fragmentation is."