You can drive with a bent fender, but if you bend an aircraft it is instantly grounded until repaired, this may entail x-raying the superstructure etc. So a small bingle in a flying car means it instantly becomes just a car until repaired and approved for flight. Personally I cant see flying cars becoming a reality any time soon.
Loads of reviews have been written about Windows 8. Some loved it. Some hated it. But they all say the same thing: Windows 8 will require a major retraining for Windows users and there doesn't seem to be some great big advantage for all the relearning, particularly for business users. If Windows 9 retains the Metro interface then Microsoft really is doomed.