North Americans have a far different experience with mobile Web than do Europeans and Asians. In short, we haven't taken to it for text, downloads and browsing. Even the iPhone is barely thawing the ice.
But the Pew Internet & American Life Project has produced a report on the evolution of mobile. It concludes people will use mobile for primary access to the Web --- by 2020.
What will it take? Lower-cost technology, standards across borders, content creation that fits the space. Meantime we'll watch a blurring of the line between professional and personal use, the diminution of personal privacy, and a race between copyright holders and pirates.