I haven't read anyone talking about it but it seemed huge to me. Elon was soft about it (might, maybe, etc.) but coming from him I think they are going to need it but they aren’t ready yet to put that in the cars. You can listen Elon talking about it in the Tesla Q1 Webcast min 39. Transcription of what Elon said (I tried to be as close as what he said as possible, sorry if I missed something): "I believe that the current production, the vehicles that are currently producing, are capable of full autonomy with the only thing that really be ... that might be needed ... maybe is probably needed is a computer upgrade to have more processing power for the vision neural net. But that is a plugin replacement, something that can be done quite easily"