That could well be. I'm not sure how well that will work out though. Have you ever tried to install Solaris on an Intel box? I did several years ago and it was disappointing to say the least. You basically ended up with an OS. Even such basic tools as gzip had to be installed separately. Kinda reminded me of what you end up with once you install a Microsoft OS. I don't know if that is still true, but for low-end systems, it was definitely easier to install Linux as so many of the really useful tools were bundled with it. On the plus side, you can now install KDE and/or Gnome for Solaris. CDE was the Worst Window Manager Ever.
I had some experience with Solaris 9 and recently tried to load 10, was told I needed at least 400MB of RAM to run the graphic installer :( (I have 256MB in my test box).