Google Voice has let users record some phone calls for a long time, but it’s not exactly intuitive — you have to hit the number ’4′ on your keypad (most people probably don’t even realize they can do this). The feature is only available on inbound calls, and there’s a verbal notification given to both parties on the call that recording has been activated.
But you can still go back to the old layout if you prefer.
Overall, this looks like a decent UI update for people that use multiple Google services.
Spam runs rampant on Gmail, but you have options.