It's always interesting to see what keywords are popping up in the various posting on job boards and mega-placement centers. Java continues to show well, but the big gainers are in and around the mobile device market, with specific mention given to Objective C.
What does all this mean? First, it is clear the iOS development is hot as is all mobile development. It will be interesting to see if Java can get some sustained growth with the rise of Android developmnent. From the trend perspective, Perl should be watched to see if there is a significant decline over the next year. C# will likely continue its growth as a replacement for C++ and as a language for Windows Phone development. Lastly, Visual Basic really looks like it may finally disappear over the next few years.