Riptide 2 is now out on Android. Haven't played yet, but understand that there are a number of IAPs up to $99.99. Still hoping it's balanced. Link: https://play.google.com/store/apps/details?id=com.vectorunit.red
Played a couple of quick races and have to say it's pretty impressive. Graphics make you wonder why so many other games can't do as much with as little. At about 58 MB, it may not be Real Racing 3 quality, but pretty damn nice - especially the water and lighting effects (playing on a Nexus 7). Hard to say for sure, but don't think IAPs will be required at this point but not sure how it will affect MP. The highest jet ski is $300,00, which makes me wonder why anyone would ever need the $99.99 IAP for $5,000,00. That said those higher priced bikes may not be easy to obtain with earnings of around $1,000-$2,000 per race (at least the early ones) plus bonuses when you level up. So far, I'd give it a hardy recommendation.