Gaming on a pico projector?

Hey guys, I was wondering if any of you had experience gaming on a pico projector?

I have a gaming computer with a gtx560ti video card. Instead of using a monitor at night, I was considering getting a small-ish projector to play games on. I thought this would be useful too if I was going to a lan party at a friend's house and instead of lugging my monitor around, I could just bring my projector.

I was specifically thinking of this:
AAXA P4-X Pico Projector
Amazon.com: AAXA P4 P4X Pico Projector, 80 Lumens, Pocket Size, Li-Ion Battery, HDMI, Media Player, 15,000 Hour LED, DLP Projector: Electronics

This seems to be pretty good considering it has
1. HDMI input
2. 80 lumens
3. Battery powered
4. Small form factor

I was also considering the Optoma PK320 (Amazon.com: Optoma PK320 Pico Pocket Projector: Electronics).

My only concerns are that I play mostly FPS games where ghosting really makes a difference. I haven't really found any videos online showing pico projector's capabilities in FPS games.

Can anyone give me any input?

I can't speak to pico projectors, nor can I really comment on those specifications with authority, but I think 80 lumens would be awful and battery powered would give you very little life. I use this as a monitor replacement:
Optoma GT720 DLP Projector
and it's pretty awesome. It costs much more than what you were looking at ($800), but is definitely worth it. After a year I had to buy a replacement bulb which was another $200.

I don't notice any issues with ghosting or other effects during counterstrike or other games.

Can't really get an answer, I personally HATE gaming on projectors or triple monitors, I prefer one monitor thats big.