Can Bike OS (5.7.1.a): Kiosk Edition is a minor tweak of Can Bike OS (5.7.1): Kiosk Edition.
After using 5.7.1 extensively, two issues were found. First, the default fonts were too small for surfing the web. Second, while watching online videos, the monitor energy star sleep mode would kick in every 10 minutes if there was no mouse or keyboard activity.
As a result a minor updated version has been released to fix these issues.