The XO 1.5 will have quite strong hardware compared to the XO-1.
The 1.5 baseboard looks compatible with the XO-1 case.
Will it be possible to put a 1.5 baseboard into an XO-1 casing?
Will the baseboard be available for the G1G1 buyers as a possible upgrade?
I would certainly pay $50 for the new baseboard and install it into my XO-1. It would make my XO much more useful. It would finally run Flash (eg youtube) and Java apps speedily. Not to mention OpenOffice.