Above all, Rhythm Cat is an entertaining game with a great soundtrack to play along to, but it also has the added benefit of teaching you how to read the most commonly used music rhythms, with levels that build up progressively. - A fun way for beginners to get past the most challenging and often discouraging introduction to reading music. - Developed in collaboration with professional musicians and educators.
Watch a nice user made video of Rhythm Cat:
Reviews of Rhythm Cat: Technology In Music Education Color In My Piano Orchestra Classroom Ideas Music For Munchkins Tech Tempo (podcast review) Marc Johnson - Pianist Apps4iDevices