Those were all just rumors, but the name “Air” makes the most sense — just like MacBook Air versus the regular MacBooks and MacBook Pro. The MacBook Air eventually replaced the regular MacBook and now outsells the MacBook Pro. That’s likely what Apple is hoping to achieve here. If it succeeds, I suspect they’ll increase the price of the Pro range.I recall the Air was rumored to be called Ultra really early on, then Slim, and now Air.