[RPatrino]

Noleump, we are missing some valuable information in your post. Was the ball dropped out of the glove after the tag was made, or was the ball dropped during the transfer of the ball to the player's throwing hand? This is important because in one case the drop was involuntary, and the other voluntary.

If the ball was 'knocked' out of the fielders glove by the impact of the tag, there is no out. If the fielder dropped the ball attempting to secure it in his throwing hand, ie. 'on the transfer', (he reached into his glove to pull out the ball and dropped it) then I have an out.