It seems premature to judge an operating system five months before its release, but these kinds of articles about Windows Vista are becoming fairly common. From Investors Business Daily:
Corporate customers testing an unfinished version of the PC operating system complain that it's too large, slow and memory hungry, according to surveys by ChangeWave Research.
Testers say the software is super buggy, which raises questions about whether Microsoft can meet its current schedule.
Also, many customers don't see a need to upgrade to the new operating system right away. That means they're likely to stick with PCs running older versions of Windows for some time.
"If somebody was forecasting that this was going to be a game-changing event, sparking a huge PC upgrade cycle, our numbers would say no," said Tobin Smith, chief investment strategist for ChangeWave Research. "I think there's going to be a moderate upgrade cycle that is as much about replacing stuff that they were going to replace anyway."