Although I enjoyed the appearance of Battlestar Galactica actress Tricia Helfer at the end of Nvidia's keynote, I thought it was not really necessary as it purpose was to show how actors deal with virtual characters.

Which is no so much more challenging than when actors in the last century actors had to deal with their "virtual" doubles without the help of technology.

But during her appearance, Helfer did admit of being a control freak and that virtual characters might help cope with that!

Helfer's tall height gave also Jen-Hsun Huang a chance to crank a joke on Tom Cruise. And that of course is invaluable!

"So for the rest of the interview I will be pulling a Tom Cruise [as Huang tried to reach Helfer's height]".

But my advice to Huang though would have been to cut the keynote short at that time (it was running over 2 hours!) and instead send all the fans to Helfer's table where she signed autographs on attendees t-shirts and keep the other open to invite Tom Cruise next year :)