The problem isn't that OS 5 doesn't support networking. There are several Palm OS 5.x devices that do have integrated BT and WiFi, for example and Sony's NX series could use Sony's WiFi CF card. Rather every device must have a driver- and that includes BT and WiFi cards (so do keyboards, GPS and etc). So OS 6/Cobalt won't make those cards work all by itself. It will however supposedly make it easier to write networking drivers.
-------------------- Lisa Gade Editor in Chief, MobileTechReview