Maybe I should update this since two years have passed...
The Android-x86 project seemed like it was going to change the whole game for Android. I loaded it on my Late 2006 MacBook Pro, and a DELL laptop I have and it was cool. I did talk to one of the main people in charge of that project, and they were willing to work on it, but it was kinda of like, "Well give me a machine for free, or no" type deal. It stopped at there. Not that there wasn't many, many, many people who wanted them to work on the ports, but they simply weren't going to embed the drivers to make it happen without test machines or otherwise just told people to do it themselves.
Basically the project is going nowhere and won't go anywhere. It almost feels like a closed community at this point. Instead of doing like a general build like that of Ubuntu and Linux distros in general, they are making compiles for machines that nobody actually owns, and are doing so because of the handouts from AMD and other companies. In the end, it's just wasted work that will be sold at a later date by these companies taking advantage of them.
As for PowerPC, at the beginning it would have been possible for us to have Eclair or Froyo on our machines, but it's completely pointless now when Gingerbread, upwards absolutely need 1GB of RAM.
The emulator is your best bet to be honest. Otherwise try the Intel x86 images that you can also get in the SDK.
