@plumbum:
A general suggestion
I would like to see more energy put into running it as an image (and advertising it). It is already a Docker container (at least it has a Dockerfile I noticed).
This means it can run standalone without accessing the app.mpw webpage, on any computer and android mobile device.
This is security-wise excellent, as you don't need to be afraid of anyone catching on public wifi, or with DNS manipulation your private keys.
Additionally a suggestions for PIVCards, as it's part of the wallet, I guess:
It would be great to know how much PIVX in front it would cost to buy a card, not in the end of the checkout, and how much $ this represents.
For example, you want to buy a $50 Amazon voucher, but in the end it costs you $57. That would be nice to know
A docker-powered deployment has just been merged to Master, actually! It is currently more suited towards Testing, but anyone with a little bit of know-how can relatively easily deploy MPW on their own setups, including the Explorers and RPC nodes required for MPW to function without any 3rd-party data sources.
For users of MyPIVXWallet, this already happens in-wallet (the wallet displays the value of PIV you're sending, before you send it), PIVCards currently has a 5% markup, so a $50 card would end up costing $52.50 - this is likely to drop slightly in the near future as an upcoming Labs Cashback system is planned.