This thread is essentially a duplicate of
this thread.
I hate to repeat myself, but someone searching for the same thing could find this thread and overlook the other. The threads should be merged.
Anyway, the
xo-4 touch and
xo-4 tablet (and probably older models) have these specs from the factory:
*e-ink (one of the modes available on the pixelqi screen is reflective LCD; also has color lcd mode)
*Fedora OS (proper linux, not crippled like Android.. no need to hack it)
*browser engine: Mozilla (but the factory browser is leaner than Firefox)
*Flash support: limited - using gnash (very lean but only works on ~half the pages)
*JavaScript
: uses XULRunner (same as Firefox uses)
Installable options:
*Opera
*Firefox (yes, full-blown FF can be installed if FF plug-ins are needed, but it's said to really peg the resources)
*Adobe Flash (fat and proprietary, but can be installed if flash is important enough)