The hacked versions of OSX run very well on lots of stuff. I'll probably switch my Acer notebook back to being OSX, if only so I have a machine to look at when I need to look at OSX. I don't really have a reason to have OSX other than to be able to support the handful of Mac users I know, though.
The new Macbook Pros have some pretty damned appealing hardware, too. 17" 1080p screens on notebooks that weigh under 3kg and run for eight hours on a battery? That's pretty impressive, no matter whose label is on it.
Right now, I am highly annoyed that I don't have any way to submit bug reports to Microsoft regarding Windows 7. I'm keeping a log for my own amusement at this point, but since the Send Feedback tool is broken, what's the point of soliciting beta testers?
Lenovo's Bluetooth connection manager won't install on Windows 7. Gives a bunch of registry errors.
I see a lot of graphical corruption and/or flashing on the transparent taskbar.
File copies sometimes take excessive amounts of time.
I can't find a working Intel Turbo Memory driver.
The Intel abgn 802.11 driver doesn't seem to want to connect to 5GHz networks, or at least not to my homebuilt AP or a Linksys WRT600N.
Being simultaneously connected to 802.11 and ethernet on different IP networks does not allow access to both, only the wired network.
The Send Feedback button is broken everywhere.
Windows 7 does not enable any kind of power management on notebooks by default.
I had a lot of difficulty associating 3rd party media players with certain file types, which I did not have with those same players under XP.
The automatic wallpaper switcher behaves inconsistently; if it's supposed to change wallpaper every two minutes, but sometimes doesn't change it for six or 10 minutes, that's an issue.
Some programs do not understand "libraries" as a location. I know Microsoft wants them to be seemless ways of abstracting multiple file locations as a single area, but if I still have to point my non-Microsoft applications at the individual folders, what's the point?