Don't expect to casually purchase a PS Vita if you're in Japan this weekend.

The former SCEE executive told Bloomberg that the system had sold out purely on pre-orders. “There were lines to make reservations for the machine at retailers,” he said.

It's unclear how many systems Sony intends to ship to Japanese retailers for launch this weekend, but we should get a better idea early next week. With the newly reduced 3DS currently breaking records worldwide, Sony needs to get a strong start.