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Cell phone usability
From CNN - carriers and manufacturers are finding that making cell phones simple is hard:
Industry experts say the companies understand the stakes involved in making sure their designs attract customers and keep them loyal... none of the major carriers impresses [one analyst]. He says most of them are trying to replicate how people use personal computers instead of coming up with a new approach.
"What do (customers) do best on the phone? They talk. What do they do worst? Type. Why is every user interface based on typing?" Entner said. "Right now, the software developers take advantage of every weakness a device has and none of the strengths."

