As a mobile developer and architect (primarily iOS now), I hate to say that there is much truth in that statement. In 2010, I started developing apps for both myself and corporate. The trend, which became very apparent in the early days, is that even if you have a great idea, you are up against several roadblocks. At the very least, an app/applet/program on a mobile device is supposed to do one thing and do it really well.
In the private, consumer world:
1) You have to set a price point that people will pay. That's typically either free, $0.99 or $1.99. And, it's why some developers people incorporate ads into their apps in the hopes of eeking out a living.
2) Then, you have to get it noticed. For some reason, insanely stupid or novel apps make it on the chart. The apps that provide utility never rank high so they become to find.
3) Then, you have have the copy-cats. They say copying is the finest form of flattery. Great - if it gets one a date with a really hot member of your preferred sexual preference. But, don't cut into my profits with that bullshit because you can't come up with an original idea of your own and then resell mine at a lower cost or give it away.
4) Lastly, there is the app lifecycle and planned obsolesce. You app has a limited lifetime. Any slowness during loading or awkwardness in its UI and it will, likely, meet the squiggly icon of doom rather quickly.
Platform of choice? Android and iOS.
The Commercial world is where the money is to be made. Large corporations have products they want to sell and marketing/sales folks who keep coming up with ways to get their products out there. They also have the money to fund development of limited purpose apps. Most still prefer to use web-based apps as well as they understand the web platform and how it can get their message across and it tends to be cheaper. Done with it? Just turn it off. Users aren't out any money. Typically, doing so is no harm no foul. Their platform of choice? iOS. Android is not making a dent in our industry (Pharma and Health) BECAUSE it is so open.
So, where does that leave us developers? Well, the market keeps evolving. First we had the older BREW and SYMBIAN phones (what a PITA). Then, we got smartphones followed by tablets. Now, through emerging tech, we have wearable devices. That will be the next market - finding the best ways to marry wearable tech with mobile, tablet and desktop technology to give the user something they find useful and affords the chance of making money. People might not like the ApplePhone or Pebble or whatever. But, it's coming.
Case in point - My youngest son, now 15, said he wanted an AppleWatch. Why? He finds reaching into his pocket to see the time (he doesn't walk around with it in his hand all the time, oblivious to the world around him as many teenagers do). Still, he wants something that does more than just tell the time (he's a competitive swimmer...not that the AppleWatch will help him there as it's not, supposedly, waterproof).
I still think a good online service providing utility via the web AND offering a useful web-service API is the way to go. I can build a mobile, tablet or tethered device to it when I am ready and think the market is ready and willing to pay for it.