I too have a Gateway system, but have it dual booted with Windows 8 Developer Preview and Windows 8 Pro. (I just upgraded the previous Windows 7 Pro to Windows 8 Pro a few hours ago). Oddly, the Windows 8 Developer Preview has zero issues with the touchscreen,
and the Windows 8 Pro version the touchscreen is inoperable. Hopefully this gets fixed soon- the whole reason I bought a touchscreen was for Windows 8 and if it doesn't work I will be sorely disappointed.
Also might I mention that the Preview edition has a different Intel driver than the Pro edition, which might be why one works and one doesn't. Too bad it won't let me use the preview edition driver on the pro edition.