The year 2010 was when mobile application development began crossing the chasm from early adopters to mainstream application development shops. But what started as "We need an iPhone app!" has now progressed to a multiple device and operating system reality. Our data shows that mobile developers are already supporting native applications on multiple platforms and that it's likely to get more complicated as tablets join mobile phones as new development targets. To avoid being overwhelmed by multiplatform complexity, 2011 is the right time to establish a multidevice mobile strategy for both development and testing. Make sure such a mobile initiative is part of your plans (and budget) for 2011.