status of the PageMap

[Joe Fawzy]

Hi alli was wondering , what is the status of the pageMap?
i saw in the wiki some articles talking about it will be deprecated, so is
that true? i can see it in the 1.4 docs, is that for backward compatability
or it still a essential part of the platform?
How can i plug my own custom subclass of PageMap and make the framework use
it instead of the stock ones
thanks
Joe