While I believe the final result is likely correct (the iPhone wins
handily), I question the integrity of the study. The way they define
"usability" and the categories in which they rank the phones give me
the impression that the consulting firm is not one of the "country's
top...user-experience firms" as they claim.
Looking at their website, they seem to be a whole lot of marketing
research with a few usability/UCD buzzwords thrown in for good measure.
From their webpage explaining their approach to design:
> Does your user interface help sell your product or service? Is it > helping or hindering your brand? Can your customer effectively and > efficiently use your product? Will the usability of your product > positively or negatively affect future buying decisions? > > Our design services focus on assembling data and recommending > designs that answer these questions. > http://www.perceptivesciences.com/services/design.php
I don't know anything else about them, nor do I know if any of their
employees are on the list. I don't want to offend anyone, but from
what I read in the article, I'm not impressed with their study.