I find that significant use of an Apple iPhone or iPad fore most people I meet is web browsing, email, SMS and phone usage. All which is outside the Apple ecosy

I find that significant use of an Apple iPhone or iPad fore most people I meet is web browsing, email, SMS and phone usage. All which is outside the Apple ecosystem. I can not figure out how we are going to achieve a healthy open ecosystem of apps with significant applications without a major malware problem. I'd be interested to see how that would work.