I took the latest sources of ScummVM from GIT and I compiled them for Windows CE.
After about one day of work, I resurrected the virtual machine on this platform with few changes and by using current SDL user interface.
I have to say that I expected to find much more troubles.
Actually, in the current code, the support for Windows CE is completely missing if compared to version 1.5.0.
However, it seems that that other thing improved, like UNICODE support, so my port for WinCE uses 99,9% of the current code.
Probably the biggest addition is the WINCE symbol, to be used into the various .mk files for excluding some files not needed here.
While ScummVM-2.3.0git seems to work file, the biggest problem comes out as soon as the window is displayed on my Asus Mypal.
As you can see, the problem is the limited size of the displays into those devices.
The window of the user interface is much bigger than the size of the screen.
I can move left and right the window by clicking with the pen on the title bar, but I can not move it up and down to a position higher than the top of the desktop.
For this reason, the classic theme is unusable because all buttons are in the bottom of the window

The official theme is better, although I can just add a game and run it, because the option button is unreachable.

However, the first results seem to be really positive... but now I'm wondering: is there an alternative user interface that we can use for such small screens?
I have seen that there are several port to some machines with little display, included in the official sources, but it is not quite clear to me how they are expected to work...
Thank you for your replies.
Sincerely.