Apple is collaborating with Adobe in an effort to bring Flash to the iPhone, according to a statement made by Adobe CEO Shantanu Narayen at the recent World Economic Forum. “It’s a hard technical challenge, and that’s part of the reason Apple and Adobe are collaborating,” Narayen said. “The ball is in our court. The onus is on us to deliver.” Apple CEO Steve Jobs has previously said Adobe needed to create a third version of Flash, as he…