The only 7" netbook (or only one I know of) was the original eeePC 7"er. I think there's an OSx86 distro that runs on it.. but again. It's against the EULA (not as trivial, imho, as you point out in your post). Jailbreaking an iPhone still pays Fido/Rogers and Apple their $$$. It's not stealing, sa it would be if you DL OS X and don't buy it.
Steve Jobs re: iTunes on Windows: "It's like giving a glass of ice water to somebody in hell"
Well I just thought I would through in my experience on this subject
Currently using a HP Mini 1035nr and have installed my purchased retail OSX Leopard to it. It was about 5 days of fiddling and kext adjustments but with a little help from my now second favorite forum (just found and ehMac now my primary hang out) myhpmini.com/forum/ I was able to get this running smoothly. It runs so well I no longer take my MBP out of the closet its hiding in!! The only thing not functioning is the internal mic. Every thing else solid.
osx86 HP-mini 1035 Retail OS x installed
32 gig ssd - 2 gig ram
!!17" macbook pro
now covered in dust
stored in a dark closet!!
I have a Dell Mini 9 and for the fun of it, I tried a Leopard install. It was really quite simple, especially with the tools developed today. It's pretty much a turnkey solution that is upgradeable with software updates from Apple with little or no intervention. The forums at mydellmini.com have a Mac OSX section where you'll find all the necessary info to do this on a Dell Mini.
While it was fun for an experiment, I went back to the Linux install it shipped with. Apparently it's just as easy to use Snow Leopard as well. In all, I just found a 9" screen very limiting. It was great to take on vacation, being so compact, but it isn't a replacement for my MacBook Pro.
Dell Mini 9. Prolly why they are still pretty expensive in the used market....
Would not recommend anything with a small SSD drive as Leopard needs at least 16GB if not more, you can shoehorn it onto an 8GB SSD but you better like making tea, coffee, pizza etc while you wait for the Netbook to do anything.
I'm using a Dell Mini 9 with OS X 10.5 on it. It was honestly quite easy to do and the Mini 9's and Mini 10v's (note: not the 10 as it cannot run OS X, but the 10v can) are pretty easy with the new NetBookInstaller.