Indiecade  is an international juried festival of independent video games. According to the list of Indiecade games that will be at E3 2013, Flower is coming to PS Vita after 4 years as a PS3 exclusive .

Flower was developed thatgamecompany, being game that preceded Journey.

Flower 600x337 Rumor: 'Flower' coming to PS Vita | VGLeaks 2.0

The description of Flower for PS Vita shows this text:

“Using simple touch or motion controls, the player guides the lead petal and accumulates a swarm of flower petals as he moves at his own pace within the environment, causing the on-screen world to change”