I'm almost positive the PS3 version will support a partial install to improve load times, not really concerned about that. I was just hoping they would release a PC version on blu-ray, but it's unlikely due to production costs of BD vs. DVD.
Considering how long DVD drives had been out before games switched from several CDs to DVD, I'd bet on it still being awhile before PC games come on blu-ray. (Even ignoring the massive file bloat that'd be needed for that. I'd bet that we need to get to another generation of game consoles first - as long as games are developed side-by-side for PC & X360, they're not going to target games to require 1gb VRAM, which means not needing 10's of GB of super high-res textures.)
....honestly, why would anyone
want a game to take 40GB of space? The current 8-10+ is crazy enough as it is.....
(of course, I still remember when programmers had to be efficient writing their code. When computers had 48k of RAM, 5.25" discs held 140k of data, and PCs came with "big" 10MB harddrives.
)