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1) GC: VM issue. Has nothing to do with language. 2) API: Google's responsible for the Android API's but Scala's standard library is definitely better than Java

by tormeh 12y ago

1) GC: VM issue. Has nothing to do with language. 2) API: Google's responsible for the Android API's but Scala's standard library is definitely better than Java's. 3) JNI performance is a VM issue, again, and JNI interface is Google's problem. These problems are not solvable by any language.