Tapwave, the makers of the PalmOS-based Zodiac handheld gaming PDA, have announced—essentially—that the platform is on its way out. The company still stands and will be working to do co-branded products with other companies, whatever that entails. You should probably just go read their statement yourselves. It almost sounds like they’ll be helping people build PSP titles, to me.
But the Zodiac, for all its shortcomings (namely, not being the PSP), is a pretty neat device, especially if you just want a Palm PDA that can occasionally play games.