Short answer: Unfortunately no.
The V is finished already and while we've thought about it, we decided to not include that, as the pen is thicker than the V and just for the penholster we'd have to increase the thickness of the V.
Unfortunately no, however the pens should not be consuming any power while not in use - since we don't offer the bluetooth functionality it should work just fine.
That should already be possible with Windows, as far as I know. If it's not it'll be hard for us, as we ship the V without any bloatware, and such a software could likely fall under that.
Palm Rejection - Worked super fine for me once I switched my OneNote to left-handed (leftie here)