Being unhappy with the last experimental version, I am putting the updated version downloadable from here: http://www.datafilehost.com/download-1a66f5c4.html (note that there is only .exe file inside, no setup yet).
– insertion points and keyboard cursor are now wider for better visibility
– Shift+Space doesn’t work any more. ALT+Space is the way to toggle text/math typing mode.
There are some other minor improvements too… I labeled this version v1.71 beta, although it would be too soon to call this 1.71.