They are carrying it all day. Nokia's Lax says it's important to balance shrinking sizes with what users want. Nokia is convinced customers want a large display that is intuitive to use. The company's 2190 model, for instance, isn't the smallest phone on the market, but it deliberately has, proportionately, one of the biggest displays. Small sizes aside, wireless phone users still want the device to have some heft.
People are reluctant to wear headsets.
They look funny. Samsung's Skarzynski notes that in focus groups people gravitate to the smallest phones. People find they are not necessarily easy to use. But the designers are working hard to leap that hurdle. Sony's Berg says there are plenty of buyers for such tiny products.