Apple this summer will go a long way towards silencing critics and catering to one of the most prevalent demands of its iPhone user base, when it introduces a multitasking solution through the handset’s 4.0 software update that will finally allow several third party apps to run concurrently and in the background, today’s iPhone 3.x software is a fully preemptive multitasking operating system, but it artificially restricts apps (other than specific ones bundled with the system by Apple) from running in the background.