You're likely over-considering the scale of your application if you're worrying about whether or not jQuery is adequate for the job. The biggest sites on the internet often depend on jQuery and its a very proven solution. Either you're designing an over-complicated behemoth if you're worrying about jQuery, or you're worrying about a non-issue.
jQuery is still just fine for large-scale applications. You can organize the code any way you have to. Its just Javascript after all.
If your app gets so large that multiple people are doing Javascript though, what you need to do is work on what is considered the boring stuff like version control policies, build processes (look at stuff like Sprockets (http://getsprockets.org/) for some inspiration for instance.
Other than that, jQuery is likely to be a fantastic choice in virtually any front-end engineering that you do.
Whether or not its ultimately a success, you really developed a kick-ass product! It looks good, seems to work pretty well. If you did this all on your own, thats a tremendous accomplishment.
This is why you've got to work on side businesses when you're younger and don't get married too soon. By the time you've got kids, you can't really focus on other businesses. Don't worry about their own failings, just work on creating your next successes on the side.
Apple using up a significant portion of their cash reserves on Adobe is very small-minded, 1990s-era thinking in my opinion.
Apple has a chance to absolutely dominate the next decade or two of computing in the most important mobile categories and become one of the most profitable companies ever. Anything that detracts from this massive opportunity, such as refocusing on much smaller creative professional markets, should probably be avoided.
jQuery is still just fine for large-scale applications. You can organize the code any way you have to. Its just Javascript after all.
If your app gets so large that multiple people are doing Javascript though, what you need to do is work on what is considered the boring stuff like version control policies, build processes (look at stuff like Sprockets (http://getsprockets.org/) for some inspiration for instance.
Other than that, jQuery is likely to be a fantastic choice in virtually any front-end engineering that you do.