The same is true of Web site features such as Amazon's one-click shopping. Before Design Truly great Web services require a deep understanding of the way users approach their tasks. Many sites offer just the features needed to struggle through, and committed users can do so as long as the site doesn't slow them down with so much glitzy design that they quit. As long as users view the site in a window of at least 800x600 pixels, it is possible that they will find something to click on that will get them closer to their goal. The mobile Internet is much less forgiving of poor task analysis.
Mobility implies small screens and few visible options.
If the options don't match the users' tasks, then the design will be much harder to use than a big-screen site that provides enough features to allow users to stitch together their own solutions. We recently completed a field study of WAP users in London that underscores the problems resulting from poor task analysis. Many British WAP services provide TV listings sorted by television networks. BBC1 appears on one screen and BBC2 on another, for instance. One user calculated that it would have been cheaper to just buy a newspaper at the Underground station and throw away everything but the TV listings.