I Have sent various replies and I can see how they would be confusing.
First, I aint no guru. Just some schmuck that wants mac OSX on a mini (and XP and "7"). I don't like the Mac screens and I don't like getting ripped off for their inferior computers just to get their OS. So I bought the OS (so they get paid for their software -it only seems fair) and what I think to be the best mini out there (the HE is pretty nice as well, much better screen for outside but the HA's screen is incredible in its own way).
Second, I am used to winning when it comes to my computers. That doesnt mean it comes easy but I usually win or I throw the damm thing away. I am not throwing this one away!
That being said.
Here (How-to: Install OS X on Asus Eee PC 1000HE Netbook | Netbooks & Small Form Factor Computers | Small Computing) is the basis for how I installed Ideneb 1.3 on my 1005HA (this installation is for the 1000HE and works on the HE with a few preliminary setups). So, after you do the following (or what is below) go to that link and follow that procedure that you would have done for the HE and it will at least get you to 10.5.6 (I have not upgraded to .7 YET). I cannot get the ethernet to work or the wireless but I have finally gotten the screen brightness to work (I think it worked once I updated to 10.5.6).
I believe that the reason 1.4 does not work is because of the bios settings. It won't work on the Asus 1000HE either.
Now, 1.3 won't work on the HA if you take the unit directly out of the box(but it will for the HE) and install it on the second visible partition (don't ask me why, I am not a guru and do not understand those things - but if someone can explain why so that I get a better understanding of computers I do not mind the schooling).
To install you have two choices: 1. reformat the drive completely and then install 1.3 (during the installation you would go to disk utility and modify the harddrive as needed for the install). My understanding is the 1.3 changes the bios somehow so that it will work but it can't do what it needs to if you try to install it on the HA out of the box. This method likely won't allow you to install future operating systems (but I have really don't know).
1. Delete the other three partitions. There are 4 total out of the box, the operating system one, the second one (blank), the third (recovery software that you can restore with the CD easily if you care to) and the fourth that has the softare (I think) that enables system recovery without the DVD.
Then create a new second partition that is FAT32 (others may work - you can try if you like - can't hurt).
Once you have done that go the link above and you will be golden. If you chose to keep XP when the system reboots you will get a screen that tells you to hit any key for choices. Hit a key and pick which partition you want to boot to. There is a cameleon loader I think that can make that screen more attractive and I am sure there are other ways to do it. I installed bootmagic 8.0 and use it (I am hoping I will be able to use it to tri-boot with "7" as well.
No system is perfect and it has taken me a lot of trial and error to get this to work. I made it work (and I do not know anything about Mac) and I think with the above you can too.
Here are a few things that I would not figure out. The ethernet, the whole audio chud and shortcut key thing (but audio works with the icon at the top and all) and I do not know if the power management is fully working or not but battery life is real good.
Good luck, I don't think you really need it. If I can do it I think anyone familiar with partitioning and installing operating systems and following directions can!
If anyone figures out the wireless I would love to know.
Best of luck.