From the two renderings, the full display phone's front camera is placed on the top middle of the phone. (myfixguide.com)
On the right side you'll find the volume rocker nestled right in the middle of the phone while the textured power button sits right above it. (androidheadlines.com)
Got Jellybean about 10 days ago on my Nexus S. Don't notice anything significantly better as far as functionality or features... in fact, my phone has rebooted in the middle of phone calls twice since the upgrade... which it had Never done before. (tmonews.com)