App info is currently processing and/or the app is not yet fully available for sale on the US App Store. Not the prettiest (or most subtle) game in this genre on iOS, but this one's free right now, and has a four-star iTunes rating and has risen pretty fast. If you're interested, the price is right.
Being colorblind, I hadn't found a Zuma game I could play on the iPhone, but this one seems to work for me...and the controls are great. Thanks!
