TPG says, "If we get away from the aforementioned marketing info for a moment, we might see through to what this game actually is: a competent take on arcade racing, easily downloaded, for $8. If I put the previous sentence at the top of the review, how differently would you feel? This is where reviewing games gets tricky. I'm a lucky guy – I get to review games for fun. I don't usually have to pay for them (though I did pay for this one), and I can usually compare across versions to see which has the best value/performance ratio. Here's my bottom line: if you have an iPhone or iPod Touch and a DSi, opt for the iPhone version. It's a lot cheaper, and the game is almost identical. If you only have a DSi, you can do a LOT worse with the free 1000 points you got from Nintendo for upgrading your portable handheld. Like nintendo-themed clocks or calculators worse."