Maybe I’ve been around this space for too long but personally I’d be a lot more excited by something useful.
As someone actually using Zcash, one feature that I would enjoy is to be able to schedule recurrent transactions in the wallet. For instance, I donate ZEC monthly to projects such as GrapheneOS. If I’d use Paypal it’d be all automatic, but with Zcash I have to spend more time than I’d like.
Not sure if it would be difficult. Just pick a start date, a frequency (weekly, monthly, etc), a recipient address and a memo note. Could end up being useful for subscriptions and such too. I guess that’s another thing that would benefit from Android hardened wallets given it wouldn’t work on offline devices.