Hi Ernie,
Can you make it *harder* to delete a deck?
At the moment all you need to do is swipe and press and, bang, your precious deck disappears forever with no hope of return. I hope I'll never do this accidentally but I can't be sure I won't someday.
One option might be to add a confirmation message, "Are you sure you want to delete the deck?" I know it's an extra step but I feel it would be worth it if it meant people didn't accidentally delete a deck.
Sure, you can back-up your cards, but the current system is a bit of a pain and quite onerous, particularly if you have sounds / images associated with a card.
In contrast, however, I feel it's fine to be able to easily delete individual cards as these come and go and, even if inadvertently deleted, are easily recreated.
My two cents.
Cheers,
Dougal