I have an Eee 701 running on XP. I'm a power user and I do all sorts of things with it, Office, Photoshop, music, divx, games, google earth, whatever you like. It's flawless except for some action games that require hardware accelleration (which I don't play anyway). I'm very surprised with its close to perfect performance.
And I just bought an AA1 on Linux for my girlfriend (who's not so great with computers). It is very neat, simple and easy to use. When we wanted to update and install things though we realized that Linux is not Windows. I love the idea of open source but it takes lots and lots of learning. It's simply a whole new world. I don't know if switching to Mac could be harder but most of last week we had our heads in our two monitors reading manuals and how-to's and still slowly getting there. It is very suitable if you want to just use what is in there but if you want to install other stuff (like we are doing) to edit photos, to record sound, etc. then you need to have patience.
I like the looks of AA1 better than Eee and the keyboard is also nicer and bigger, although I have no problems with my Eee's keyboard. Its touchpad is a joke in comparison to Eee's but it has proper Pg Up and Pg Dn keys.
We were also worried about the web support at first. Asus has been doing a great job in that sense and the AA1 manual is completely useless. We've been looking around to find a Linpus Linux manual but couldn't find it yet. But we are happy to find this forum and others like this one.
Another thing I prefer my Eee over AA1 is it's perfect size. When I'm in bed I pick up a normal sized book, put it under my white beauty and watch my film. With AA1 you need a bigger book which will also be heavier
