Lately starting to b crazy about this iPhone game called 'Triple Town'. Not sure if there is a iPad version though.
It's really so cute and easy to play^^ but if you don't want to 'disturb' the commuters on a public transport, it's best to mute the game. Because the villains in the game which are cute bears will go 'growl' and 'growl' time until you 'kill' them or 'change' them into a cathedral.
The objective of the game is to expand your town as much as you can. For free version, u can only only one 6x6 maps but if you pay USD4.98, you can play three other maps in 5x5 size.
To expand your town, you just need to match three or more features of the same type eg. Grass, bush, trees, houses, rocks, tombs etc to change them into the next upgraded feature. Example 3 grass will become bushes.
It's really addictive and fun! But one thing is it 'eats' a lot of battery if you are outside!! So if you are outside, best to bring along a portable charger!
Enjoy the game ^^
Thanks Yvonne for the recommendation too ^^