I was able to get XP on the Mini 1000 [Portal page][review] and I did a quick Crystal Mark benchmark. This is a fully updated SP3 machine. Here are the results:
The HDD score is disappointing. The HP Mini 1000 that I have has a 16GB SSD, and that should be at least as fast as a standard 1.8 inch HDD, but it scores pretty below that level. Not too bad otherwise considering the price of the hardware, and the build quality of the unit, but it is still kind of sad that my UX180 scores slightly better than this, is much smaller, and gets about the same amount of battery life. Sure, the UX180 was really expensive when it came out several years ago, but today you can buy one for a similar price as the HP Mini 1000.
The Mini 1000 is definitely targeted as a secondary computer. I find that it works well as an around-the-house computer for staying connected through social networks and doing light web browsing.
Benchmarks for the HP Mini 1000 http://www.umpcportal.com/?p=6272