there does not seem to be any "syndrome" or repetitive injury associated with continuosly bending the elbow to get food in to the mouth.

seriously, a cell phone? no doctors in our practice have seen that ~ they think it is just a Manhattan syndrome involving rich people with doctors that need to think of ways to get them in for OVs, followups, and the ever lucrative consults ...

I am a former gymnast and coach.  From spotting on the vault, using a repetetive motion with my shoulder, I do have rotator cuff problems now.  Anything is possible. 

I can see how carpal tunnel/game keepers thumb can be related to texting.  I have carpal tunnel in my right wrist...well in conjunction with another injury I sustained from my dog (she pulled my wrist and elbow out of socket once).  I text alot but I am sure not as much as a teenager...LOL, I just prefer it sometimes vs talking on the phone.  I haven't expierence first hand any real problems, but I am not a 24 hr texter either.... I think everything comes with some sort of warning label...whether it is a valid issue or not.  Next you will see lawyers on TV, with class action lawsuits against cell phone companies and makers for giving them Curbital Tunnel Syndrome - also known as Cell Phone Elbow. 

Now this is funny... I have a cure already in mind....Stop texting and call the person....or drive to see them...and upgrade to bluetooth....tah dah ...case solved...oh yeah ...and we won't be needing Dr House for this one...!

Cubital Tunnel Syndrome I've heard of, so I'm assuming this is what you're talking about.  It's the entrapment of the radial nerve in the elbow.  I have it in both elbows, and believe me it's not from using a cell phone, since I rarely use mine.  It is however, from continually using both my arms in the OR, either from positioning, moving or helping patients.