What would you do with the hand held portal device?

[credesniper]

Create a house with no doors, and only slits at the top of where door frames would be.

That, and pratice juggling/perform amazing shows.

[red_pharoah]

fire a portal in l4d... fire one in tf2...

[b]ZOMBIE TEAM WINS! YOU FAIL![/b]

[H4yd3n]

[QUOTE=paul simon;21929088]Infinite energy.

Imagine this, a portal in the roof and one on the floor.
Yout build a tube around it, and create a vacuum.
Inside, there's a big metal ball or something (a big magnet?) falling down, achieving insane speeds due to no air resistance.
Then you build something around that can turn that into energy.

[editline]12:47AM[/editline]

Oh, and i'd also shoot one inside the empire state building, and one on the bottom of a very deep sea.
Just because i can.[/QUOTE]

Wrap it in copper wire and it will produce electricity.

[Banshee Friend]

Kill Obama With it.

[rathat48]

[QUOTE=Luxinus;21928000]Wouldn't work, if you thrusted you'd move thus not achieving anything.[/QUOTE]

If the wall behind you with the second portal on it was moving back and forth...

[Frostbiteicefox]

Shoot one on a high ceiling.
Shoot other underneath an annoying person.
Instant death contraption.

[DOCKTUH]

suck my own dick