You can be sure that legal, stockbroking, accounting, medical...

You can be sure that legal, stockbroking, accounting, medical (eg incl Health Dept's), large private companies and others will want to ensure security of sensitive communications.
A few of the above are already on the register and you can bet that early 2008 will see a lot more of them queing to get hooked up.
A lot more to come with this one. The market is massive!
Expect a number of the above will want to take a strategic stake.
Today Australia, tomorrow-------------------------