http://img371.imageshack.us/img371/8218/lego22mu.jpg That was made in 3dsmax 7 and photoshop, in maybe 4 or so hours. This was made in Real Life, in maybe four or so seconds.
Thanks! The fire alarm is a bit large. Also the door is a 4:7 ratio, while most real world doors are 3:7 or 2.5:7. The real ratios look a bit strange in game though, also I wanted the door to be wide enough that the player could easily get through it. Might tinker with the scale of the fire alarm and the ratio of the door.
I use iPad 4 but had 1st gen Nexus 7 and my GF uses 2nd gen Nexus 7. I love N's size. You just can't beat that but for everything else iPad just kills it. With $30 extra bucks for apps you can make it a full blown business tool. 7" might not be the best thing for presentations. It's small.
They aren't DLC, you just have to unlock them. Silverback is unlocked by getting level 7 barriers. Sentries are unlocked by getting level 3 or 4 Decoys.