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True - they're not easier to learn but beyond the browser they are more applicable across different mobile platforms (i.e. Android, Blackberry). Objective-C and Cocoa will always be iPhone specific. I've been learning Objective-C though I wonder if my time would be better spent on javascript/html/css and usage of environments such as Titanium developer or Phonegap.

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Although it's not particularly common, there's no real barrier to using Objective-C on any platform that has a gcc port, since it's one of the supported front-ends. If you liked it, you could use it to make native Linux apps, in lieu of C or C++ or whatever else you might use.

Also, many many people already know JS/CSS/HTML, like me.

I picked up phonegap and had my first app on the store in a week of spare time. But then I rewrote it with Titanium because it was kind of slow, which took at most another day.

It felt like Christmas, and I found iPhone skillz under the tree.

But now I want in-app-purchase, so I'm learning Obj-C... so the above was all for nothing.

Why can't you do in app purchase, with the titanium, or phonegap?

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