With rumors about  device to device payment talks[1], Square is in tough spot.<p>[1] <a href="http:&#x2F;&#x2F;www.wsj.com&#x2F;articles&#x2F;apple-in-talks-with-u-s-banks-to-develop-mobile-person-to-person-payment-service-1447274074" rel="nofollow">http:&#x2F;&#x2F;www.wsj.com&#x2F;articles&#x2F;apple-in-talks-with-u-s-banks-to...</a>