As I posted in another topic on the same model, the Mechdrew guide for installing a vanilla retail copy of snow leopard works perfectly for the 1001ha. And it is entirely possible to get the standard wifi working without replacing it. Just use the wireless utility provided by Ralink themselves posted on the Macintosh section of there website.
As I said in the other topic, Snow Leopard runs well on this model, but you have to initialise the Ralink Wireless Utility every time you switch on. I have set it up so that this program is opened on logon and have saved a profile for my wireless network so that it starts up without me having to configure it each time. One note for this software, I have noticed that if you leave it running there are sometimes issues with it randomly disconnecting, i suggest that as soon as you see that a connection has been established you quit the program, which will leave the wifi card running nicely until you next turn off/on.
I hope very much that i have been of assistance, if anybody has any problems/queries post in one of these topics about the 1001HA or pm me and I'll be happy to help further.
Nico, I am so grateful to you for posting the link to mechdrew: I had never seen it before (not looking in the right places perhaps). The guide seems sane and as a result I have downloaded the necessary files. I've struggled and failed with various iDeneb versions, and the eeeboot thing, always there was an issue. Perhaps now I can have a hackintosh. I love OSX and am looking forward to getting SL on this netbook: Win7 isnt bad, but OSX is better .