Teremei: After we pay for them? I have a nexus 7, dosbox doesn't work but I didn't expect it to. Games like Torin's Passage and Space Quest 6. Is there a way to play them on the nexus 7,
Until they are ported to ScummVM or you manage to get Dosbox working, you are out of luck.
Also even if touch screens "seems" perfect for point and click adventure games, it's not always the truth, especially for older games; going pixel hunting and big fingers on a small screen don't really go well together (even on a 10" tablet it's not always very user friendly).
Teremei: or am I going to have to either hope for Microsoft surface and gog.com windows 8 compatibility or hope they get added to scummvm some day?
It won't help, having a game compatible with Windows 8 doesn't mean it will work at all on the Surface tablet that's two different thing.
Only the Metro-ish store applications created using WinRT/Javascript/etc... will work on both desktop and tablet; all the other native only apps like most of the GoG games will only work on the desktop.