You'll note that one of the poll answers is "Yes if Apple makes it legal to use OS X on one." What this means is that Apple would offer a version of OS X that was legal to use on a generic PC, and that they would do their best to insure that system updates didn't break OS X on these "generic Macs."
As a side note, calling these machines "Mac clones" is quite a misnomer. A clone is an exact copy of something, which clearly these machines are not. Instead, they're more like "Generic Macs" -- OS X-running machines that are made up of a collection of generic PC parts. Regardless of what you call them, though, it will be interesting to see if Psystar gets off the ground, and what, if anything, Apple decides to do about them.

