Quantum Conundrum is from Kim Swift, one of the designers of Narbacular Drop, the puzzle game that inspired Portal and eventually led to Portal when Valve hired her. She has since left Valve. Quantum Conundrum is her first post-Valve game..
From the time I've spent with the new Duels of the Planeswalkers, I can say it's an improvement on last year and that's good enough for me. Lot of cool new features.
Probably that they're registered with Disqus, which is the software we use for this comments system. You should register so your name isn't boring ol' white.
Oh, wait, that's not what it means since my name is boring ol' white. It seems to mean they've linked their account to Facebook or Twitter. Since I don't use those, I have a boring ol' white name.