It's a bit difficult to get the hang of it... but once you you do, it's the best game on iTunes. 3 dimension play. iPhone or iPad. You can also plug with HDMI and use iPhone as a controller for flat screen TV. Best is iPad. Enemy is flying 360 degrees at you, away, sideways, and firing at you. You can challenge others online. Great game!

Months later... I still have not run out of new levels and scenarios! Great game!

This is my third movie app. I deleted the others. This is by far the very best!

Simple and intuitive to use. I color code different branches of ideas - and for each item, I can add numbered "to do" lists and also use checkboxes.

It would be great if you could save your composition. I use my time on the New York subway, to compose little tunes in iPhone. With headphones, it sounds like a real concert piano that has a bit of pressure sensitivity, meaning hitting the keys harder makes a louder sound!