The 3.x SDK's are highly performant have been since last May when they were released. The SDK handles all the threading and we've tested it with over 2000 concurrent threads with no degradation on the device CPU. If you have some data points on performance of the 3.x level of the SDKs, please send them over to me at rjwoods@adobe.com. We've benchmarked the SDK's against many other analytics SDK's in the market and we're highest performing in terms of speed to send 100 hits, least impact on the d...