I think that's most developer's main problem with the Cube, compared to the Xbox: 24 less megs of RAM. I didn't think the lower amounts would be a problem (with the supposedly super-fast 1T-SRAM), but I remember reading an interview with the company that ported Red Faction 2 saying it was hard to get it running on the Cube because of less RAM-although it does have more RAM than the PS2...maybe it's just because it's not unified. Can anyone clarify the RAM on the Cube? I'm not sure I remember totally. I do think Half-Life 2 could be ported, though, albeit with a substantial investment-they [iould[/i] rewrite the code completely, using only the maps and scenarios from the original game-it would could a little less than a total game, and carrying the Half-Life name...it could sell very well.
Regardless, I'm playing it on the PC.
Oh, and about joypads vs. kb/m vs. weelchairs? Weelchairs have a few too little buttons. Personally, I prefer a console controller to the kb/m setup for all but FPS and strategy games. For an adventure game, the analog joystick is really a must.