Australia Map Where can I download for free the current Australia Map for my TomTom One?

Would need to connect TomTom to your computer to do so.

https://www.tomtom.com/en_gb/sat-nav/maps-services/shop/travel-map/australia/

have you downloaded software to talk to tom tom device and the web site for tom tom
http://au.support.tomtom.com/app/answers/detail/a_id/12493/~/installing-mydrive-connect
don't know if maps are free
http://uk.support.tomtom.com/app/answers/detail/a_id/15230/~/changing-map-on-navigation-device-with-computer

Usually, if you buy a (new) TomTom with a "free" lifetime maps, it is only for the (one) existing/current map(s) installed on the device. So, if that applies to your TomTom, you'd be able to get maps for South Africa (for life).
To get a TomTom map for Australia, just go to the tomtom website, (www.tomtom.com) and click on "Maps & Services" ... and you'll be able to select and buy/subscribe to the map(s) you want.

plug into a comp that is online and go to tomtom site to find out

If/when you've just purchased a (brand) new TomTom GPS, you can register it (at the TomTom.com website) and download the latest map (for your device) .... free ... as part of the latest map guarantee.
Whenever you connect your GPS to the TomTom website (via TomTom HOME), you'll get (free) updates to your current map version - ... but they are NOT new versions of the maps.
To get new versions of your (current) map, you'll need to purchase the update (e.g. online, on the TomTom website). Upon paying for it, you will get the activation codes, etc. for you to download, validate and install the maps.

If your GPS has lifetime maps, (after you have registered), you'll be able to connect (via TomTom HOME) to get the latest map release, without requiring any code/password.

you tom tom should have come with a serial number and an activation code.

Contact TomTom directly and you should be able to download the map through TomTom home...

Also the TomTom home app (if ever synced & registered will have an backup of ownership to the device))

Also the device it came with....

I bought a Tomtom go 720 from Australia and build in Australia Map, I want to get a USA map, do they have any free download maps from the website.

All you need to purchase compatible map from manufacturer and install into your current GPS device by given instruction upon purchase.
Here is the link http://www.tomtom.com/products/maps/select.php

Good Luck

There are no India maps for tomtom. For India maps you may use Mapking, SatNav or MapMyIndia (best maps but with lousy software).

SOUNDS LIKE YOU DOWNLOADED IT TO TOM TOM HOME AND NOT TOM TOM ITSELF. OPEN UP TOM TOM HOME AND LOCATE THE US MAPS THEN THERE SOULD BE A OPTION TO TRANSFER MAP TO TOM TOM.

I HAVE ALSO 910 TOM TOM AND A PRO AT TOM TOM DEVICES

LET ME KNOW