The front facing camera is more usable to me on a tablet that a rear facing one. My phone which is always with me is good enough for taking quick shots (3.2MP), and I have a camera for better pictures.
While it would be nice to have the SD card port it isn't that big of a deal to me, I can load my SD card up on my phone and then transfer VIA BlueTooth when I want to watch a movie. Or just load a movie onto it when I want to watch it, I don't need an entire library worth of movies. And most people shouldn't have most of the movies that they want to put on their device, all of my movies are DVD's that I ripped.
I Pre-Ordered the Nexus 7 this morning.