Following this week's news that Manomio's C64 emulator will be free from now on, EA has cut the price of its sublime music puzzler Auditorium to exactly nothing, with level packs available in-app at 59p a pop.
Auditorium involves guiding a luminous particle flow into several containers by manipulating the size of circles around which the flow bends. You'll have to play it to see what I mean. It's a unique game, upon which Pocket Gamer's own Jon Jordan bestowed a Gold Award when he reviewed it last year.
Prior to this freemium price change, Auditorium was £1.79/$2.99.