The Samsung Yopy Linux-based PDA has been reviewed by a couple of sites. Here’s some info links:

Samsung main Yopy site

bargainPDA Yopy Review

PDA Buyer’s Guide Review

YopyDeveloper.org

Hmm… US$400+ (closer to $500) for a Linux PDA? Palm OS and Pocket PC boxes are available for well under $250. Would you buy a Yopy just to use Linux (vs. putting a port on, say, a HP iPAQ)?