It would appear that the recording ability of the JB3, is not a real priority for Creative, as all the newer models (Zen, etc.) are geared more towards smaller packages and playback only.
The JB3 is almost at the end of it's lifecycle (as far as computer products go, about 2 yrs.), and for the miniscule market segment that tapers occupy (and let's face it, we ARE but a very small market segment) I don't see them spending a whole lot of time developing a new, high quality field recorder, for the 1,000 or so units they may sell because of that capability - much less the R&D required to move it up to a higher resolution bit-rate, or make it stealthier.
Remember, the recording industry (RIAA, etc) is our ENEMY, whether the BANDS are our friends or not. To them we're BOOTLEGGERS, no better than common thieves. Any device that's going to enhance our ability to STEAL thier profits, is sure to attract negative attention from that portion of the industry. How much heat do you think Creative is going to be willing to take, for a few measly tapers.
Evidenced by the fact that they haven't done a whole lot to enhance the abilities of the current model, and with major players in pro and consumer audio appearing to be getting into the HD recording game, I don't know that we're going to see any new devices from Creative to compete in that arena.
For most people, the JB3 is just a toy. Those like US that would harness it's capabilities to make taping that much easier, should count our blessings. I'm sure the recording capabilities of the JB3 were an afterthought for Creative, and not the reason for it's design in the least.
Rick