here's a feature request about the TabletPC support in Fullscreen mode. TabletPC's arent a relict of the pre-iPad era, especcially the Lenovo x4, x6, x2xx Tablet series are very common. They're using the Wacom Penabled system, which is basically a serial Wacom graphic tablet. The same issue also appears on a real serial Wacom Tablet, USB is not tested.
Problem behaviour: I've got a Leonovo X61 Tablet with high-resolution SXGA+ display with a native 1400x1050 resolution (4:3 factor). In window mode it's working, of course, but that's no solution. In Fullscreen mode the pointer works with mouse and trackpoint. If you hover the pen over the display, the mouse pointer will flip directly to the screen frame, stopping mostly in the edges. If you move the pen across the screen, the pointer will speed up directly to the opposite side.
Correction attempt: The easiest way would possibly to use the native resolution as fullscreen mode, but that requires a higher scaling. Common TabletPC native resolutions are 1024x768, 1280x800, 1440x900, 1400x1050. The other way would be fixing the sensibility area. I had the same pen behaviour on my Mac with an serial Wacom Ultrapad 1218 and the driver TabletMagic. With a very curious manual area setting which was working on a 640x480 area I could use a fullscreen ScummVM on the Wacom.
Additional function: The Lenovo Tablets have some extra keys on the display bezel, they should be used if the computer is in tablet mode. There's a display rotation key which works directly on the video card driver, A Lenovo Toolbox key, Escape, and in a circular shape a cursor block and Return/Enter middle button. The keys can be remapped, so the Lenovo Toolbox key should be equivalent to the F5 key, but only in fullscreen mode. An internal onscreen keyboard is probably too difficult, but the save menu could get an additional button which auto-creates a new save entry, easiest in the way 'game - date'. For other events an USB or bluetooth keyboard must work.
This feature is neccessary in at least this ports: Windows, Linux, Mac (dor OSx86 and real Macs with serial Wacom tablets and TabletMagic).