A recent feature request, for Dynamic Catgeory Products, was to add the ability for textual matches on dates.
The magento store had product attributes, which were text fields, populated with dates in the format of YYYYDDMM

They wanted to dynamically display product, using the textual fields, matching teh dates, taking it from the current date PLUS X days 

This was solved by a new DYNAMIC VARIABLE, using PHP's date functionality