theory11 — Magic Tricks & the World's Finest Playing Cards

Upside Down Card Trick

Not terribly done - but there is no context.

Watch this clip of David Blaine when he was doing Magic for Haiti - the second trick he does is a 3 phase inversion routine :http://www.youtube.com/watch?v=cnAxtZN4HjE

I do something similar to this (based off of this clip actually) where a selection is reversed twice in the deck and then left sticking out and held while the rest of the deck is reversed, much like your clip.

It's a neat idea - but it's not a full routine. Give it context and you'll have something that can floor people.
 
What RikAllen is saying is that this trick, while well performed, is not at its bets when performed alone. You should try to build a routine around it, using other inversion effects to build up to it like David Blaine does in the video he linked.
 
Perversion by Chris Kenner has this as the ending. But his involves a 3 phase routine. Check it out in his book TOOC.

I do agree that just doing that isn't going to be that great. Definitely make it into a routine.