Fork Or Not, Does Honeycomb UI Make Sense For Smartphones?

If it didn’t make sense to Google to support Android 2.2 or 2.3 on tablets because it was not optimized for tablet use, why does it make sense to have a UI optimized for a tablet on a smartphone? Earlier this week Google released a preview of Android 3.0, and after looking at the screen shots of the UI designed for a tablet, I got the feeling Google was going to fork Android. Perhaps forked is too strong of a word, what I really mean is that it looks like Android will have two UI shells, one for tablets and another for smartphones.