Here's a collection of what the peeps are talking about.
https://www.bloomberg.com/news/articles/2018-01-26/starbucks-chairman-big-on-cryptocurrency-just-maybe-not-bitcoin
https://www.express.co.uk/finance/city/910629/bitcoin-cryptocurrency-news-latest-Ripple-Ethereum-price-value-surge-starbucks-payment
https://www.marketwatch.com/story/a-trusted-digital-currency-is-coming-but-its-not-bitcoin-says-starbucks-howard-schultz-2018-01-26
https://www.cnbc.com/2018/01/26/starbucks-schultz-a-digital-currency-is-coming-but-wont-be-bitcoin.html