nice Plugin - but you should describe the usage a little bit more.
How to use the Plugin after installation:
Download your Panorama from G+ or your mobile phone or upload it direct to your wordpress Blog. The File is a simple JGP the Name is like "PANO_20140215_151330.jpg" (Size ~2 MB).
After you uploaded your jpg file. Go to Media --> Media Overview (here you see all your pictures,videos, ... klick on the name of your panorama - in my case "PANO_20140215_151330.jpg"
Now you can change the Name, description, ... But the important thing is you will find directly under the name of your picture the permalink to your picture(=panorama) in my example:
ID of the panorama = 3492
This ID you have to enter in your Post:
Following Code in my example:
[sphere 3492 width="1024" height="748" autostart]
Thanks for the plugin!