if they have to copy ideas anyway...
might as well copy Spotlight's command line mode, called mdfind. mdfind is really fast since your machine's already paid the indexing price.
Well, maybe not an exact copy. mdfind is not the friendliest of utilities when it comes to adding special search criteria, makes gnu find options seem cuddly and warm in comparison, which takes some doing.
Then, again MS being MS, they will certainly hook it up to Powershell super-obtuse syntax* - it seems I have to look up the syntax every time I want to do something as easy as sorting a directory listing by date.
* PS is consistent and I suspect it really flows once you get it, but that hasn't happened yet with me and I really get the impression it's aimed much more at machine consumption than casual user manipulation.