Sparklabs fourth batch recently kicked off and I had the chance to speak with one of their most promising startups, OnnuriDMC. OnnuriDMC operates a mobile advertising platform, CrossTarget, that the founders believe has solved a major issue for mobile advertisers; being able to track users in the mobile app environment in real time. Background In the PC environment advertisers are able to easily track user behavior through cookies, but this is generally…