1. Releasing the A500 Plus but not telling anyone, and having backward compatibility issues with it.
2. A600 i think was a good idea, have it cost more than a A500 Plus was not
3. A1200 & A4000 should have been developed a little bit further, and had more features to say competitive.
4. THE BIGGEST OF THEM ALL:- Not using the Boing Ball as the official logo instead that stupid colour tick!