I'm uploading right now the mac version 1.0.2 (windows version will follow in half an hour or so): this one should start in fullscreen and allow to switch between fullscreen and windowed mode by pressing F1.
Hope you'll enjoy! :)
Yes, the cursor was intentionally hidden in this version.
I found it was just ugly to see, and I was pretty sure it was unnecessary: since you don't use the cursor to aim with the pad, I though it wouldn't make much difference to do the same with the mouse...
If you like, I will implement a feature in the next release (out in few hours, I guess) to show an optional cursor. :)