A lot of the indi titles are running on windows/linux/mac and its a bit of the chicken and the egg. No one will develop for linux as there are no systems etc. SteamOS is taking the first step saying here is a system - develop for it you have a 55 million userbase :)
I live on a brand new building estate and the fastest I can get is 576kbps. No virgin cable anywhere and over 7 k from nearest exchange. I'm up north. Probably around 5000 households all with crap broadband.