There will be user created content but i am not sure how it works.
UT is very unknown i told a friend about and he thought it was a tennis game XD the idiot.
It would be fine playing with a controller when everyone else is playing with a controller and when you get a mix it would show people which is better for FPS's so it will be alot of fun getting used to UT on a controller.
This would be good and i agree it would be better not to have the exclusive games thing but we are only pawns in big companys game of chess and we feed their hungry mouths by buying games and consoles.If there werent any exclusives then everything would depend on 1st party support which is pretty good for Sony,Nintendo and MS.It would be great to have this games but i wouldnt really mind if it came or it didnt.
On the subject of creating "user created content" on the console:
Honestly, I have made levels in the unreal enginge before (obviously not 3, but still), and I can tell you I wouldn't want to try doing it on a console. The amount you need to access toolbars and menus would make it a freakish nightmare. I won't say its impossible to be done on a console, but I have a hard time fathoming why they would even bother with it. Most of the modding community is going to have a high end computer since that is the exact demographic we are talking about here.
If they do release the editor on the console then it will see very little use unless they manage to produce one of the most ingenius control schemes known to man. The fact that the PS3 can handle gestures makes it a possibility for them to get the job done, so I won't rule it out completely, but I think any serious editor is going to be using the PC regardless.
But there should be no reason PC modding won't work cross-platform so there will be little difference to most users since they will still be able to download bitchin cool (and enormous) map packs to make the online multiplayer experience that much more varied.
PS - To anyone who has tried making Unreal Maps, the learning curve is steep but the rewards when you get a completed level are worth it imo. The sheer amount of attention to detail requried to make a level look professional is insane, and it gives you a bit of respect for some of these level designers and editors and exactly what they go through to create these environments. Plus you get to learn the lingo and probably develope a better understanding of the way the games are built (at least at a high level).