It seems that the art style of The Simpsons just doesn't translate well to most game systems, with only the recent ones capable of fully realising Springfield and keeping the spirit of the show intact.
'Tapped Out' is, in essence, a simulation game much the same as Sim City. Your mission, should you choose to accept it, is to rebuild Springfield after yet another classic Homer blunder which wipes out the town and it's people.
Gameplay is nice and simple with the original music, voice actors and animators from the series and this all blends to create something fun that is nice to play whenever you have some free time. With some little quirks that make it unique, it really is one of the better Simpsons games around.
There is a slight problem with the connectivity side of things. This game will only load if you have an active internet connection so best to play it in the house if you only have wi-fi (I can't speak for 3G users as I don't have it.) There are also a lot of updates but they don't take too long to download.
On the whole, 'Tapped Out' keeps you occupied with the numerous ways of rebuilding your town and creating a completely unique Springfield. Like most iPad games, its designed to be 'pick up and play' and not, as is the case with many PS3 and XBox 360 games, something you can be absorbed into for hours. A good and simple game for all ages.