For everyone who is worried about this being a way to cheat, here are some things to think about:

-It only stores seeds that the player already has
-It doesn't give players seeds that they haven't already discovered or purchased
-It doesn't reveal any more information than what is already available from the many breeding charts and the forums
-It is being designed so that seeds can be stored and retrieved only by the player slot that created them. Trying to use them with a different game/player slot will delete the Virtual Seed Tray and it will be gone....