gofreak said:Considering 'HD' games often fit on ~7GB of space, or whatever it is on 360, I dunno how big an issue there'd be there. There are a lot of offsets to consider also that ought to mitigate things to one degree or another - videos will be half (or a quarter) the size they are on PS3 or 360, in-game assets will be pared back out of processing constraints elsewhere, audio files can presumably be pared back an awful lot given the audio environment on a handheld vs a home machine. And on top of that, they shouldn't need to use any file replication or worry about laying out files in a particular way to minimise access/seek time - things that sometimes limit 'real' usable space on a DVD. While I'd hesitate to say that there'd never be a problem, this isn't really a comparison we can make apples-to-apples. We'll have to wait and see if devs working in a multiplatform context start complaining about it.
That said, though, I think it's pretty obvious that economy rather than technology is what's limiting game card size to 4GB. And economics will change over time. In a couple of years 8GB cards might be as cheap as 4GBs are now, and so then may be feasible for publishers. There's no point in offering 8GB now just because it's technically possible if they're going to cost an arm and a leg, which they would do, in a world where some game media costs cents. 2 and 4GB cards are probably already more expensive than DVDs or Blu-ray.
Many games I have installed onto the 360 hardrive are not even 7GB. Most are around 3-6GB
EDIT: just checked, these are the currently the games install on my brothers 360 HDD
2.9GB - Marvel VS Capcom 3
4.7 - Bioshock
6.6 - Halo Reach