The TechLounge reviews the iRiver X20 PMP. iRiver introduced the X20 PMP in February.

Quote from the review:
" I’ve been a fan of iRiver products for a while now. Like many electronics companies they are primarily based overseas. As such, we in the States miss out on a handful of nifty little gadgets that our Asian or European brothers and sisters have in abundance. In fact, iriver showcased a select few non-U.S. market devices at CES ’07. I have to admit, I didn’t give them much of a glance as I figured we’d never see them again. Not so… Today I’ll be playing with the iriver X20, a 4GB media player that runs with the like of the iPod nano and Sansa E200 line of PMPs. But don’t expect to find one at your local Best Buy or Circuit City. The X20 is available online from our product sponsor, but is this little bit of gray-market goodness worth exploring?"
Read the full review on TheTechLounge. The iRiver X20 is not in stores in the United States. Japanese importers like Dynamism offer it.