Oliver,
We typically have the next data cycle on our server ready to download 3 or 4 days early. Many of our iFly hardware owners will create a backup SD card and use this for updating, then they swap it out when it goes live. Android owners can do this if they are using an external SD card for their data, but it's not commonly done because there is usually a lot more stuff being stored on the card.
This data cycle will go live today.
Thanks,
Walter