Subject: Density of Carbonated Liquids

Density of Carbonated Liquids
There is this new kind of drink on the market called "Orbitz."  
It is a clear juice (not carbonated) with these little gel-like balls 
floating around inside of it.  I know this works because the juice
and balls are the same density.  I was wondering if it would be 
possible to make this work with carbonated beverages.  Would the extra
air inside of it make a difference in its density?  If the air inside
does affect the density, then wouldn't it be impossible to keep the 
balls suspended in the liquid constantly?  If you poured it out into a
glass and the fizz came out, wouldn't the liquid's density increase 
cause the balls to float on top of it?  
Just curious.
Thanx

Re:Density of Carbonated Liquids