Yes, but it involves hacking the Kindle I'm afraid. The Launchpad crew have managed to turn the page using shift, then space.
How to install launchpad:
https://www.mobileread.com/forums/showthread.php?t=97636
How to make page turns (kranu's post, top of page):
https://www.mobileread.com/forums/sho...t=97636&page=9
What's the blog? There is a guy looking to do page turns for a friend who doesn't have much small muscle control who'd probably be interested in working with you on / using something like this.