Thanks Filak.
Yes - after I posted this I found this sticky...
https://www.mobileread.com/forums/sho...d.php?t=138186
It looks like KennyMinot did quite a bit of posting about upgrading to Ermine - which looks like the last beta.
SOT - I did see Woot has a 5" Galaxie on sale - but 5" is too small for my (old - almost 60 year old!) eyes.
As long as 1.6 works for a person, and the hardware works - the Edge Dualbook seems like the best deal out there for just over $100.