From The Gadget Site -

After being released and selling out(1000 units) in one day in Korea four weeks ago, and then in Hong Kong where the entire allocation of 500 units sold out in 90 minutes, the Viliv S5 will finally be available in very limited quantity from Dynamism on a pre-order basis starting April 27th.

Best part is the price will only be only $599. Pre-order customers will also receive a free spare battery, car kit, and leather pouch ($135 value). The first shipment is expected May 8th.

Preorder page here.