Should all brands go mobile?

CNET has an interesting article on big consumer brands gradually moving their attention to mobile phones. Cell phones offer the possibility of establishing a direct relationship with customers, and brands obviously hope to take advantage of such opportunity. However, jumping on the mobile bandwagon is not for everyone. As some expert point out, branded content needs to be relevant and high-quality in order to succeed. As you know, content is expensive to produce and, when it comes to mobile phones, it also gets expensive to deliver. This means brands really need to understand whether such investment is worth or not, in terms of ROI but also of brand strenght over time.