This isn't your grandparents' harvest-gold kitchen appliance. They say it will give you "two orders of magnitude better price-performance" for analyzing large volumes of data. This is hardware with open source software that, when tightly integrated together, improves the performance when querying hundreds of terabytes of data.
Clarise makes the point that enterprises are not investing in new infrastructure and technology. So did Sun and Greenplum waste time & money on a product no one can buy?
Companies have growing volumes of data and the need for timely access to their information. I think we'll see more specialized appliances for the BI industry.