Each week Joshua Fruhlinger contributes This is the Modem World, a column dedicated to exploring the culture of consumer technology. Back when the PlayStation 2 was the world's most popular game console, the original Xbox was struggling to gain a post-Halo audience and the GameCube was a cute diversion with a couple decent titles, I trolled gaming message boards. I was so sure that anyone who bought anything other than a PS2 was out of their mind that I set on the most immature mission in history: to inform the masses, proselytize the word as handed down by H