Personally I find selecting through mesh like that weird, because I've used Blender for so long. It's like making 100% sense that I'm selecting only what I see and need. I've always used wireframe mode to select things through on purpose if I need to select things from behind too. Because in wireframe mode you can see the…
xrg: then why the hell make the Blender Game Engine? Nobody is asking for Max like smoothing groups - Max users call them smoothing groups, Maya users call them hard and soft edges. Read Dataday's post, it sounds like one of Blender's devs knows this: That's a feature that's existed in most other 3d apps for about 15 years…
It looks like the dotted line that extends from the vertex doesn't lock the correct edge it uses to slide. If you try to spin it around, you'll see that it have some delay in following the pointer, like Lazy Mouse in Zbrush.