My Opinion ? Okay then if you ask me so gently :D
1 - More people will come to Gnu/Linux since the "only problem was the games
not available [under Gnu/Linux]" so more people comming and not understading
the free-software "idea" more people using their voices to tell the
developpers that (and sorry for this example but for me it's the best one)
"HEY you developper from the PRIME for nVidia Ion that licensed the software
under GPLv2 ! Don't do that or nVidia will not release their wonderful driver
that works so well for my [proprietary] games with my Ion"... And believe me
I've already seen some harder critics (to not say insults) about this subject
by those kind of people on the Phoronix forums (but that another problem :D).
2 - It will kill hardly and at once all of those people living only from free
software gaming on Gnu/Linux (as well as those entreprises with those little
games under Gnu/Linux even if it is not Free Software).
So in conclusion. In the short term it is a good thing. In the long term it
is an horrible thing because they will force Ubuntu to change (some changes
are good like the Intel's performance over the Intel GPU drivers and some are
bad like more support for non-free stuff on the distros in order to support
Steam, like Ubuntu now shipping with the nVidia and Ati proprietary GPU
drivers) and other distros will do the same in order to be side-by-side with
the [money] evolution which will be bad for everyone (except for those that
just wanted a Free (like in Free beer) Windows with a Penguin.
