When Austin-based Perceptive Sciences, a usability consulting firm, tested the usability of an iPhone, an HTC Touch, and a Nokia N95, the results, according to David Haskin (Computerworld), were clear: "In terms of usability, iPhone blew away its two competitors. Its overall score in the usability tests was 4.6 out of 5. The HTC Touch was a distant second at 3.4, and the Nokia N95 scored 3.2." And that wasn't the only test at which iPhone excelled.
Source >>