Apple blocking Mac OS X 10.8 installation on working Mac hardware
krugazor.eu
krugazor.eu
Minimum specs have changed between beta and released version in the past. Apple has also released firmware updates to make machines boot in 64-bit mode as well. It is well within the realms of possibility that your machine could become "compatible" before 10.8 is released.
Secondly, as a point of reference the current MacBook Pro's do have upgradable hard drives and RAM. However the battery is not easily replaceable.
I've never used a Mac, but I get the feeling Canonical is mostly trying to be "inspired" by the Mac OS, rather than Windows. Because of that, as a Windows user, I found the transition to Ubuntu a bit frustrating, and I found Linux Mint much more natural to use - like I didn't really have to learn anything new. Surprisingly, I even find it a bit more intuitive than Windows 7. After years of using Windows 7 since beta, I still don't know where some stuff is located compared to XP.
I'm a kind of old Linux user. I've been using it here and there for the last 17 years. Nine years ago I bought my first Mac and finally found Linux again when I started to be good in programming.
My setup is very minimal. Using tiling window manager (xmonad) and set of my own widgets. Everything is Solarized and with my laptop all programs full screen.
At work I've been using this kind of setup (but without Apple hardware) for years.
For me, Apple (or Microsoft) doesn't provide as good UI as Linux does with my own setup. My config files are even in SVC, so when installing a new machine, all my stuff is there right away.