I am sorry if you have any problem towards portable gaming weather its a physical buttons, screen size, its just for kids, etc. The GB, GBC, GBA, PSP, and DS all have some of my favorite games of all time on them and if you missed out on those for whatever reason it sucks and I really do feel sorry for you. I love handheld consoles and the ways they force game devs to think differently around the limitations and/or design considerations for making a game that is in easily digestible bites.
I can understand if its not your thing but it does make me a bit sad when I know someone is going to like X or Y game says "Wow, that looks, sounds, and plays great too bad its on X portable console". I encourage you get over whatever issues you may have with it because ever since my first GameGear I've been hooked to the portable side of the industry.
Edit:
I am surprised that Sony hasn't added some sort of PSP emulation mode to the PS3. I'm sure the console is powerful enough and the PSP control scheme is basically a cutdown Playstation controller layout. These things along with the PSN linked accounts and download service would make it really simple to simply download digital copies of PSP games to play on your PS3..not really sure why they never did that for those who can't deal with portable consoles.