Yaesu SPA-1 release date?

[wcu02mpa]

I have the Yaesu FTX-1 field and it is pretty amazing. I see now they are going to sell the 100W SPA-1 amp to make it a full optima. Anyone when that release date might be? I see the part number available at all the major outlets But still no inventory. I am going to go full optima.