Originally shown at CES back in January, iBN6 has three major and interrelated things going for it: an edgy new body and a IPX7 waterproof certification at a very affordable price. iHome is arguably the king of $100 speakers — it has had more very good and great options at this price point than any other Apple accessory maker — and iBN6 has been designed to deliver a compelling waterproof experience despite selling for $50 less than Grace Digital’s…