Telephone numbers

I see that the authorities think we need more telephone numbers: see
http://www.acma.gov.au/WEB/STANDARD/pc=PC_410424

Of course, there's nothing wrong with mobile numbers expanding into the 05 range from the 04 range.  But the interesting thing is, as ACMA states, that's an additional 100 million phone numbers.    The existing 100 million will apparently all be used by 2017.   So, together with numbers already available, the total number of available phone numbers for mobile devices is going to be 200 million (perhaps just slightly less, if not every number is considered to be suitable). 

 Let's see now, that's 7 or 8 mobile devices for every man, woman and child in Australia?   Sounds like a growth industry to me!