I own an iPad 2, and the performance as of Ver. 1.5.0 has already seen a rather significant increase. The gameplay is smoother, the controls are crisper, and the resource usage has definitely dropped to conserve RAM, which means less crashes and longer and more consistent runs. Ive been waiting for an update like this, and I believe its safe to say that I am satisfied. Keep up the good work, and I look forward to updates such as this in the future.
Tyrell Barnes about Sonic Dash 2: Sonic Boom