The Australian government's intention to introduce a mandatory Internet filtering regime has precipitated a little bit of a gold-rush, amongst Internet filtering companies there.
I wouldn't expect anything less when there is allegedly $44m of tax-payers loot up for grabs.
No doubt even [insert favorite ISP name here] are busy having all manner of meetings about this and wondering what slice of the pie they can get and what they can write off against the same.
ISPs aren't in it for the hobby or pr0n, after all ...
regarDS