I thought it was a typo, too. But it’s very real: TigerDirect is selling the UX230P for $999.
My husband first spotted it at DealsPlus and after investigating further, I found this thread at Micro PC Talk. TigerDirect’s photo gallery shows that the model number on the box and the top of the device itself is indeed UX230P and some of the paperwork has "VGN-UX200 Series" printed on it, so it’s obviously legitimate.
The specs suggest the UX230P to be an American version of last year’s Japanese UX50 except with XP Pro and WWAN instead of XP Home and the Compact Flash slot. It even comes with that damn stand! It’s the lowest spec’d U.S. model (1.06GHz Intel Core Solo U1300 processor, 512MB RAM, and 30GB hard drive), but the price is excellent and unlikely to reappear after the UX230Ps are sold out. TigerDirect sells the UX280P for $1760, so it’s not like they’re not known for having unbelievable deals on UXs.
Even though the UX230P doesn’t seem to have ever been acknowledged by Sony, I added it to my UX comparison chart for good measure.