Hey man,
Can you take some pictures of the case ON the phone? Also, some photos of the front and at an angle, so we can see the "lip" of the case.
What do you think about the shell? Feel slippery?
Are the buttons - volume, power - easy to push?
Does the silicone covering the top front of the phone feel protective/thick?
Thanks, man!
Just got my otterbox in, and yes it covers half the speaker

And i noticed the one pictured on their website doesn't. So i just sent them a question asking about that and if they're planning on fixing the issue. I did notice they're out of stock..
I'll try to give my answers to your questions (keep in Mind I JUST received mine 10 mins ago)..
Shell = looks very good (besides covering up half the speaker on the back)
slippery = Not too bad, i mean it is hard plastic so no it doesn't grip like a soft rubber case would, but the volume and power buttons are from the silcone case so they provide you with some good grip considering you'll prob be holding it in that area...
Buttons are very easy to push, the volume ones feel perfect, the power button is easy but not as good as the volume rocker IMO..
The silcone on the top and bottom doesn't seem very thick IMO.. I do believe the case as a whole would serve its purpose in a fall though. Hopefully none of us will find out, but if I do I'll let everyone know.
Now for a question I have.. Is the screen protector that comes with otterbox cases ANY good at all?