There isn't really any reason for Steam to be 64 bit, other than "nativeness". Especially now with multiarch.
On the otherhand, on Linux we've been running fully 64bits OSes for nearly a decade (except for a few bumps in the begining with the not-quite-open-source Java requiring some quirks to get fully native 64bits runtime, and the shitty 32bits-only closed source flash requiring a wrapper).
A 32bits steam feels completely out-of-place, specially for something handling games - i.e.: resource-hungry software which would definitely benefit from the 64bit mode.
On the other hand, its a formerly windows software and we all know too well how 64bits has been doing meanwhile on that platform. (Only drivers and a few select software are 64bits, almost everything else is still running 32bits).
Originally Posted by KellyClowers
It would be nice if they dumped flash, though...
I second that.
Specially since steam only uses it to play video preview - something which is very well covered by HTML5's VIDEO - which in turn is *already* supported in steam as it rellies on the HTML5-compliant webkit.
True, but why NOT make it 64-bit if pretty much all hardware that would be running steam supports it and has for ages? Also, maybe Big Picture mode would get more FPS, given how beastly it is.
Valve have mentioned a 64-bit steam client will eventually come to linux
I have a hard time thinking of any 64bit games off hand. Now we are back to the same issue
Even if 64-bit games are available,as far as i know you can only download the 32-bit versions through steam, because steams In-game overlay doesn't currently work on 64-bit games.