These are cool. Solana already had a simple and well supported standard for interactive tx requests, and you can see how this builds on it. 

I continue to believe txs and higher level intents as plain old web URLs are very powerful:

Imagine deep linking from anywhere on the web to keys dot coinbase dot com with an interactive tx request. No "connect wallet" friction.

Imagine if you could connect *any* wallet to keys dot coinbase dot com to complete that interactive tx, not just your Coinbase Smart Wallet. Smart wallets by default, legacy wallets for power users. No choose wallet modal friction.

Imagine if every wallet had its own keys dot coinbase dot com, using the same standard. We could have "blinks" without browser extensions.

https://github.com/anza-xyz/solana-pay/blob/master/SPEC.md