He is out of stock.
He is designing the V6
Because of demand, he has decided to order up one more run of V5's.
It will take several weeks for the V5 run to get here.
He has decided to stop selling them directly.
He is looking for responsible distributors
I bet I could sell 100's of his drivers if it wasn't necessary to modify the resistors and solder connections together to get the driver to go over 100mA..