On tablet support:
1) users should never, ever have to edit xorg.conf, but this is still needed when adding some graphics tablets.
2) users should never, ever have to compile their own drivers, but this is still required when using some graphics tablets. See e.g. https://help.ubuntu.com/community/TabletSetupWizardpen
This is something that Photoshop-on-Wine users are actually running into. I don't know how common it is, but if I've already heard about it once, it's probably not rare. - Dan