yes they are making halo for psp just like they did with quake, they even showed a 3d pic of master chief on psp-hacks or something.
If you want free DUN or any other hacks or questions about and for your cell phone especially the lg8700(thats what i got) from verizon checkout howardforums.com i am there by the same name!
No sorry, you have to get the actual cd. BUT, that you can play the Story Mode. If you play Multiplayer then an error will come up saying to insert the CD, so if you do happen to go in multiplayer, just re install it.
i have the demo on my school server pm me ur name or mack a special match with a password and tell me if ur gunna be on at noon for the next week and i might be able to play you....blood gultch only tho