So far, I've installed Kubuntu, XP, Vista and back to Linpus. Each OS was really good and all performed very well and in some cases, much better than expected. After playing around with the operating systems, I've gone back to Linpus. Kubuntu, XP and Vista all run fine on the Aspire One, with a little tweaking, but I've gone back to Linpus for simplicity and ease of use. It's not that XP, Vista and Kubuntu were missing, but there were little things that made me go back to Linpus. XP and Vista ran really well, even with the slow SSD, but there were a lot of tweaks needed to get it usable. The screen is just a little too small for a standard XP install in my opinion. I also seemed to have a few issues with speed of applications running. These weren't deal breakers, in and of themselves, but combined, my overall XP experience was, XP and Vista are too much OS for a limited hardware and screen. I really liked Kubuntu and had it humming along really well, but there were a few issues with being able to use the GUI for configuration with only a 600px screen height. USB connections were sporadic. Closing the lid could have some odd results. Everything worked well, very well in fact, but I found myself only using the applications and that were already included with Linpus. I know, for many users, Linpus doesn't have what they want, but after I added the advanced menu and a few little tweaks, the Linpus does everything I need it to do an more and the default OS, Linpus, is made for the Aspire One. With Linpus, I find myself happier with the overall experience and when I need something more, I just turn on the laptop. Just food for thought.