Just for the record, those are tablets, that weight more (i.e: they
have more battery life thus power) that can take such overhead. N800

Why do you assume that X is overhead that needs more weight and battery capacity? X11 is also using the same framebuffer as others are using. It is just a different software
architecture.

doesn't even have phone functions! Do you know about any linuxphone
with X?

The phone functionality (GSM) of the Neo comes from a separate module. So, adding one to the N800 wouldn't change anything in the performance of the graphics.

BTW just for the record, the first Linux wristwatch from IBM did also use X11... here: http://www.research.ibm.com/WearableComputing/linuxwatch/ linuxwatch.html

IMHO it is a common misconception that X11 raises performance problems. It is mostly how X11 is used. E.g. if you flush too often, performance goes down because
it cannot combine and buffer screen updates any more.

BTW: some of my experiments indicate that the framebuffer itself is the slowest part
in the game.

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