Apple starts with the 57px icon and a radius of 10 then scales up or down from there. Thus you can calculate the radius for any icon size using 10/57 x new size (for example 10/57 × 114 gives 20, which is the proper radius for a 114px icon)

You've heard of Browser Detection and Feature Detection. Form Factor Detection is a third way, providing an avenue to manage conceptually distinct user interfaces. It doesn't eliminate the need for the first two approaches, but you use them in the context of a particular form factor's interface.

On the "hydrate from strings" build approach: I would prefer using appcache and using built layers of AMD code instead. This gives much better overall mobile app performance since more than just JS can be cached. But that is more of a side point. Feel free to use the "hydrate from strings" approach, AMD could be used in that fashion too.

How is it possible the mid-tier Android vendors cannot eke out revenue growth with that kind of global Android unit explosion still going on?

The most likely explanation is the rapid expansion of the low-cost Android phone vendors, particularly ZTE and Huawei. In 2010, Vodafone and Orange decided to give these Chinese companies a shot at becoming mainstream vendors in Europe. The experiment was a wild success

I bought a WebOS device and went to Taiwan. Now I understand why the Web on Mobile is a pretty big deal.

Snapshot of 500 Android screen sizes on EU site...

...The first culprits are embedded web views—browser views embedded within apps such as Twitter or Facebook, enabling users to consume links and content without ever leaving the app itself. These views often incorporate their own chrome which results in slightly smaller (or at the very least different) dimensions than the native browser...

...But this is only the half of it. On Android specifically, a series of personalisation and accessibility settings further contribute to screen size diversity. The most disruptive setting by far is Zoom Level.

iWebInspector is a free tool to debug, profile and inspect web applications running on iOS Simulator

The Center's first activity will focus on App Inventor for Android, a programming system that makes it easy for learners to create mobile apps for Android smart phones by visually fitting together puzzle piece-shaped "programming blocks" in a web browser.