Subject: What would happen in a state of antigravity.

I am a major fan of Science fiction, which admittedly, uses some 
outlandish answers for some tough questions about our future as space 
explorers.  I have read and am familiar with the concept of antigravity as 
a story element.   Magically some piece of technology would be activated 
and the forces of gravity would be nullified.  So that's all well and good 
and it solves the problem of the plot and the reason why hero X is on 
planet Y. And all the neat things can hover in the air like magic.  But... 
What effect would the antigravity be nullifying?  The effect the earth has 
on the object? The Sun? Wouldn't the affected object just remain at its 
current velocity while the entire universe passes by?   Instead of 
floating in the air,  wouldn't the object seem to move off towards the 
center of the universe at the speed at which we are moving away. 
Thanks
L. Wade

Re: What would happen in a state of antigravity.