The OLPC lpatop is strictly for bulk sale to governments of developing nations. It is not intended for the average consumer. That being said, there are many innovative technologies, software and hardware, going into the OLPC project that are definitely of interest to the average user. And for many geeks, there is the new gadget factor that makes these systems very attractive.
Ars Technica has an article that explains Quanta is considering a consumer version of the XO to satisfy those who want one of their own. I hope they go through with it and I hope this spurs the adoption of some of the more compelling technologies by other vendors. The proposed $200 USD price tag is nice but to get a system with a daylight readable LCD, the experimental new battery chemistry, seamless mesh networking, and everything else that makes the XO so unique is worthwhile, at least to me, even at a higher price.