As one of its daily deals, Tech Woot offers the Ion Audio Piano Apprentice for Apple iPad, iPhone, and iPod, model no. iCK05, for $29.99 plus $5 for shipping. That's the lowest total price we could find by $5. This 25-key touch-sensitive keyboard is compatible with 30-pin iPhone, iPod touch, iPad models. It operates on an AC adapter or four AA batteries (included) Deal ends today.