You don't need to master Cocoa and Objective C to create killer iPhone apps. Rhomobile, PhoneGap, Appcelerator, and Ansca tools leverage standard Web technologies and still tap native features
When Apple opened up the iPhone to developers, O'Reilly books noticed a big jump in sales of its long-neglected titles on Cocoa and Objective C. These elegant dialects never caught on outside of Apple, but when the iPhone SDK appeared, the world started studying up again. If you want to work in Rome, learn Latin.
The toolkits also offer a promise of cross-device development, a process that is both surprisingly efficient and a source of endless little disappointments. In theory, your software will run on an iPhone, a BlackBerry, an Android handset, and in some cases even a Symbian phone or a Java ME phone. In practice, the fonts are never exactly the same and little glitches appear from time to time. If you write your code with big strokes, the pictures will look the same, but anyone who frets over the details will find plenty of struggle.
I took four of these toolkits -- Rhomobile Rhodes, Nitobi PhoneGap, Appcelerator Titanium, and Ansca Corona -- out for a spin, wrote some code, and came away certain that it was easy to create menu-driven mechanisms for browsing data using any of them. If you want to give the user a nicely tuned interface for a database, it's pretty simple to whip together an application in no time.
If you love Ruby or have Ruby code to port, then Rhomobile's Rhodes framework is a good path for bringing your code to mobile platforms. Rhomobile bundles a byte code version of your code with a tiny Ruby interpreter (version 1.9) to produce "native applications." Rhodes supports all of the major platforms, including iPhone, BlackBerry, Windows Mobile, Symbian, and Android, although I only looked at the iPhone result.
Those of you who signed up for the Windows 10 upgrade but changed your mind may be able to crawl out
You may be better off sticking with Win7 or Win8.1, given a wide range of Win10 trade-offs and...
Samsung's throwing another phablet into the ring, but this one's curved on both sides
New sources are stepping up questions about Oracle's stewardship of the Java development platform
What you omit from your resume is just as important to job search success as what you include
Some apps on some iPads support full split-screen capabilities, so be prepared for a variable user...
The latest Start menu has few of Win7-era customizations -- but many new tricks worth knowing