Sweet Tooth, Inc., eCommerce customer loyalty software, announced today that it has secured $2.25 million in seed funding.  OMERS Ventures led the funding round with MaRS Investment Accelerator Fund and Points International.  Sweet Tooth is a Canadian company based out of  Ontario.  The company launched in 2009, providing a solution for merchants to create 'points' programs and deliver online and in-store rewards to their customers.