The jewel-matching genre is so crowded these days that I am almost automatically dismissive of it but I have to say that the concept of digging really makes this one unique. It's a heck of a lot of fun and a great timewaster.
Then again, it's from Astraware, which as far as I'm concerned means it's top notch right off the bat. They've always made some of the best games for Windows Mobile :-)
Current Apple Stuff: 24" iMac, iPhone 4, AppleTV (original), 4gb Shuffle, 64gb iPad 2.