I find it an interesting topic. If they're able to do what Mozilla done with Firefox and be sure to have a beta version to test all apps/plugins and all that palava, and integrate the features as they become stable and ready for consumer use then I don't see a problem. However, should they screw up, I'll be moving distro.
On the topic of moving distro, should they change Ubuntu to arch-based or something like that, I'll most definitely be switching distro.
I'm very much a debian-based user,