The news regarding Starbucks is quite huge and its possible impact could be significant to the market. It's one of the most popular premium coffee bars and has a great market of variety of people from the upper to middle class.
People seem to be obsessed with the idea of using bitcoin to buy coffee. I personally doubt many people will use this app because it's more convenient to use cash to make small purchases like this.
I wish bitcoin start-ups concentrated on use cases where it's hard to use fiat but easier to use cryptocurrency. Such as gambling, remittances and so on.