During a very short time, the following information was available from Apple servers:
According to this document, Apple plans to offer soon an iPhone App allowing users to manage their iDisk via their mobile phone. We think that if Apple did not release it yet, it is simply because they did not convince carriers (yet) to let this application use 3G networks. With iPhones and other communicating devices, the resources of 3G networks are becoming more and more saturated, requiring massive investment and upgrade to support the growing needs.