Sup fools, 
 
I picked up Xenogears from PSN today as it is the second best Squaresoft RPG for the PSone era (I think we all know the best one involves time travel), and I heard about this Remote Play bullshit.  Like a usual hater of Sony hype, I brushed it off and joked about it's use.  Go figure it works. 
 
While it may not be painless, it's pretty easy and simple to do.  All you need is a PSP, Andorid/Sony Ericson mobile, or a Sony label laptop.  Synch it up with the PS3 and you can run every PSone game from any location. 
 
You can do a direct wireless with the PS3 for flawless zero lag while you're in your own home.  So it works when I'm sleeping with a girl and I don't have to go down to the PS3 to play, I can just whip out the mobile or the PSP for it.  Or you can do a wireless network connection that requires you to sign into PSN but you can play on YOUR PS3 from any location in the world.  This one has slight lag.  Tried this at my dad's business today and while JRPGs are perfectly playable...I got a hunch some of the faster stuff will lag.   
 
But yeah, if you got a PS3 and a PSP/Sony Mobile/Sony PC, try it out.  You can play PSone games while on the toilet, driving around the city, dinner with the girlfriend over wireless on the mobile, etc.   
 
Gotta admit, this is one of the coolest things I've discovered about the PS3.  Microsoft should get on that with the WP7.

Couldn't you just download it via the PSP's PSN?

I'm pretty sure you can't run PS3 games with remote play.
 
But I haven't tried any PSOne games.

" @Bocam: This one has one unified save file.  Why would I want two different saves on the PS3 and PSP? "

I guess that's cool, but like someone else has already said can you not just download the same game from the PSN store for the PSP?

" @MrKlorox: I can just use my iPhone for that and have a better resolution.  >.> "

Remember when they included remote play in downloadable PSN games like Pixel Junk Monsters and Bionic Commando: Rearmed? 
 
They should start doing that again. 
 
Or maybe they do still. I don't know.

" Remember when they included remote play in downloadable PSN games like Pixel Junk Monsters and Bionic Commando: Rearmed?  They should start doing that again.  Or maybe they do still. I don't know. "