When you're talking about a trade show with as much hype as CTIA, there probably are not many technologies that have been totally overlooked.
Mobile TV is certainly going to get a lot of coverage as will the newest phones themselves. There will the glitz and glamour to spare on those two.
I'm going to try to spend a bit more of my time, however, looking at GPS, NFC, memory, and open systems.
GPS is probably going to be the next killer app for mobile phones because it can generate so many new applications. It's not just maps-on-the-phone to help consumers. It's also the fact that if the cell phone knows where it is in geographical coordinates and can communicate that back to the mobile communications infrastructure, then and lot of other things can happen. It's the applications that are of most interest.
NFC (near field communications) is probably closer that mobile TV to being the next-big-thing for mobile communications. My article on the topic NFC meets money is a pretty decent preview of what's in the works. So far, I haven't heard a lof of NC hype coming out of the pre-CTIA hubbub but I'm sure I'll find something if I look hard enough.
Regarding memory, just let me say that there will be at least one interesting announcement at CTIA in the mobile memory space.
Open systems is another thing we have not heard much about in the run-up to CTIA but it is the OS of the future and I'm wondering what Symbian and others will have to say about that. Could be very interesting. The reality of mobile Linux may be on the far horizon, or it may be just around the corner.