Definitely need this - I have a grocery store app with an embedded QR code linked to my account for discounts at point of sale. Opening the app is slow - so I've screen shotted the QR code. I have to pull my pinned photos at checkout to scan the code. This is also slow - but less slow than opening the app.

Looking forward to adding it to Apple wallet.

As an aside, does the Jenny number still work at most stores?