After a brief respite to recover from last week's hot dog and homemade ice cream comas, our tablet mag is back in action. Getting our e-publication affairs back in order, Brian Heater sits down with Levar Burton to chat about Reading Rainbow, a new iPad app and Star Trek gadgetry. Hitting on another bit of childhood nostalgia for many of us at Engadget HQ, Alexis Santos drops by NASA's Launch Control Center (LCC) for a tour after more than three decades of operation. On the review front, we roll up our sleeves and put both the Nexus Q and the Samsung Series 9 t