It's not about theoretical openness, but whether the manufacturer you bought your phone from passes Android's openness on to you, their customer. Most (all?) o

It's not about theoretical openness, but whether the manufacturer you bought your phone from passes Android's openness on to you, their customer. Most (all?) of the successful ones (HTC, Samsung, Motorola) don't. Since Android is Apache-licensed, the openness isn't enforced to all users of the software.