Ok, BrentDC and others who use LXDE as your primary environment!

You have to help me find the Openbox (LXDE's WM) configuration setting that lets you move windows past the top of the screen. If you can find this setting, you'll just have to hit the menu button once and then tap the top of the screen to jump the window up (I already have that part set).

This page says it can be done. That would fix GIMP and others.

EDIT: Try this please! Within LXDE, open a window, put the mouse cursor in the middle of the screen, then press the menu HW key on your tablet (this should change the cursor to a four-way arrow), then drag your stylus from the middle of the window upwards. See if that moves the window up past the top of the screen. It seems to work on my tablet, but I've been messing with the config files.

EDIT 2: The method given above WORKS for GIMP; It is usable in LXDE.