Lenovo has introduced the ThinkPad T431s, which weighs 24% less than earlier models and eliminates some buttons in favor of expanded touch-pad functionality. The redesigned model retains its red tracker button. "We don't change things all that often. We put in a lot of thought into all we did," said Alysia Baker, worldwide product marketing manager at Lenovo. The company also is preparing a contactless payment capability featuring an embedded near-field communication reader.
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