So screen size >= 4.3" and all specs remaining same = Tablet
and screen size < 4.3" and all specs remaining same = Phone ?

Is this the new definition of Tablets ?

I though so far the debate was if it had only GSM data capabilities but no voice we would call it a tablet.
Of course Voice makes it a phone as well.
In that case what about the Nokia (rumoured) netbooks ? Maybe Nokia plans to integrate the tablet and netbook into some middle ground (with say a 6" screen) ...

Again this is all out wishes - I guess only time will tell - and Nokia of course.
At the moment Nokia is unwilling to speak.