While much of the attention on the growing mobile eSports market is focused on core games such as Vainglory or Clash Royale , the sector could have a much broader appeal. That's what casual US developer and publisher iWin is hoping, at least. It's just signed a five game deal with skill-based real-money platform Skillz. The first title in the deal is a cash-based version of its Cubis puzzler - Cu...