X and Y Poke-storage add-on after the chaotic launch in Japan, when servers crumpled beneath unexpectedly high traffic back in December 2013.
The service lets you store and carefully sort up 3,000 Poke-things in an online bank, ready to transfer to and from your X and Y collection. Meanwhile, a linked Poke Transporter app lets you move 'mon from Pokemon Black, White, Black 2, and White 2 into the Bank.
The Pokemon Bank carries an annual fee of £4.49/5 euros in Europe, and $5 in North America. The EU version offers a 30-day free trial redeemable before March 14, and if you sign up before September 30 you get the adorable and adorably free Celebi as a bonus - Pocket Gamer has a handy guide on how to add the new critter to your roster.