Annotated DataFrame
I'm an R user & am new to pandas, so hopefully this question isn't totally out of ignorance. 

Are there any plans on creating an object similar to R/Bioconductor's AnnotatedDataFrame ( http://rss.acs.unt.edu/Rdoc/library/Biobase/html/class.AnnotatedDataFrame.html )? It wouldn't seem sensible to carry over the aspects of the class that are based on gene expression data sets, but it would be quite nice to allow annotations of labels to be accessed via a method like varMetadata.
