We gave Top Spin 4 online 2 vs 2 game a shot with friend to see how it feels and works online. As you can see it works quite smoothly. I'm playing with the Bjorn Borg character and my friend (ManeFIN) is controlling Andy Roddick. On the other side there was a guy with PSN nick frc_IMPERATOR, he probably had some friend there playing too.
At this time, GimbleFIN has 8,765 views for Top Spin 4 spread across 1 video. Less than an hour worth of Top Spin 4 videos were uploaded to his channel, less than 0.99% of the total video content that GimbleFIN has uploaded to YouTube.