Anyone with an Android or Blackberry 10 smartphone can install the Amazon App store on their mobile phone, just go to http://amazon.com/getappstore on your phone to install it. Use the US links before unless you have it set to AU which works fine too.
These 13 Android apps have just gone free on Amazon. Decent selection there, Lifeline looks like a good game and Sworkit Pro (Usually US $1 is a good personal trainer app (usually US $4).
us(amazon.com) au(amazon.com.au) Shiver: The Lily's Requiem Collector's Edition (Full)
us(amazon.com) au(amazon.com.au) Goat Simulator
us(amazon.com) au(amazon.com.au) Lifelineus(amazon.com) au(amazon.com.au) AVG AntiVirus PRO
us(amazon.com) au(amazon.com.au) Explore Daniel Tiger's Neighborhood
us(amazon.com) au(amazon.com.au) SpongeBob Moves Inus(amazon.com) au(amazon.com.au) Bridge Constructor Playground
us(amazon.com) au(amazon.com.au) Christmastry
us(amazon.com) au(amazon.com.au) Batman: Arkham City Lockdownus(amazon.com) au(amazon.com.au) Last Horizon
us(amazon.com) au(amazon.com.au) Sworkit Pro
us(amazon.com) au(amazon.com.au) 2Do: Todo List
Via TA OzBargain(ozbargain.com.au)