The crosstab functionality in MS Access is (I believe) a seamless integration of Access and Excel, where pivot tables are actually implemented.
As others have indicated, crosstabs are available in other data analysis systems.
I have found a nice implementation of crosstabs in R, which is a system/language for statistical analysis, data display, and data plotting. <www.r-project.org>
R is a version of S, which is also a statistical analysis language. There are lots of issues with how one displays a crosstab which are not easily addressed within the context of RDBMS. I suggest the PostgreSQL team not plan to add crosstabs to PostgreSQL, but simply refer enquiries about crosstabs to the R team. The link between the two is not difficult to establish.
