In the last update we have added a “delete wallet” button to the unlock dialog – it was requested by people who forgot their encryption key and thus had no other choice but to delete the wallet (remember – there is no way to recover the encryption key).
We have since received feedback that sometimes friends and especially children were very tempted to press that button and follow all the way through the confirmation process. The red button has proved to be irresistible. Ourselves we use Passcode Lock security on our phones to avoid this problem, however not everyone does and we decided to restore the status quo.
The “delete” button has been… ahem, deleted in the latest updated which I submitted tonight to the App Store. We will reintroduce a more child-proof way of deleting the locked wallets in a future release.
We expect the new release to hit the store by Saturday.