BBC NEWS | Searching for a mobile interface: "
By Spencer Kelly, Friday, 4 August 2006
Nearly a quarter of phones returned for being faulty are working properly, a recent survey suggested. The problem is people just cannot figure out how to use them.
'There's a common idea in psychology that users can only cope with a certain number of choices at once,' explains Geoff Kendall of Next Device, 'And that number is roughly seven, plus or minus two.
'So anything more than between nine or five choices then users will get confused and actually only look at the top few items anyway.'"
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