How long until DMOZ listing is active on Google Directory?

My site was accepted into DMOZ about 4-5 weeks ago but this has yet to be updated in the Google Directory, do you know how long this usually takes to update?

DMOZ produces a rdf dump weekly for downstream users to update their directories. Google is just one of ~3000. It is up to the users how often they update. Some do it weekly. Some never do it. Google used to do it monthly, then 3 monthly, then whenever it feels like it. They have not done it for at least 9 months now (maybe even almost 12 months)....so when the the next one is a good guess.

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I forget to mention this. For some reason, Google are using the rdf dump to update the search at the Google Directory, so if you search for seoptimise in the directory search, you will see it there - but click on category and its not, as the directory proper has not been updated for a very very very long time.

SPECULATION - Google obviously downloading the rdf dump --- maybe the using if for something? Descriptions in SERP's? Incorporation into ranking algorithm???

Google kills dmoz clones and their own directory was [is] a clone - course if they do not update the 'cloned' pages are somewhat diversified.