It appears on the store as a pre-order but when you make the purchase, the HD version will be added to your download queue and will download right away.Weird I am only seeing pre order. Will reload the app and see again!
It is run by a group of enthusiastic Kaleidescape owners and dealers purely as a service to this community.
... but we strongly encourage you to register for a full account. There is no cost to register for a full account.