plus the app ecosystem is littered with malware, spyware and ripoffs.
So is the internet, and yet I wouldn't want it policed by anyone (remember AOL?). What you see as safe I see as closed.
I love OS X and thought it was awesome that it was based on BSD Unix. The problem I have with Apple devices is that they're going back to the walled garden that frustrated even Mac lovers like myself in the 90s. iTunes pisses me off, and the fact that they bought and shut down Lala (a spotify-like service from 2 or 3 years ago) was even worse. I'd get an iPad if it were more like a regular computer and less like a computer-lite. The fact that it's a locked down, controlled "experience" is a big sell for some people, but not me.
Precisely why I sold my iPhone and never plan to buy another Apple product again. It'd have to be pretty special to convince me to not to wait for a better and open-source version to come out.
Eh, just my personal opinion but open-source is over rated. I've worked on every kind of phone and tablet out there and it doesn't matter if you system is open-source if your product isn't as good as Apple's. I have yet to run across any of my clients that have decided against an iPhone or iPad to get another product. On the other hand, just about every user of Droid or Windows OS devices have switched or are switching to and iOS based product. Again, this is just my opinion, but Apple continues to put out the best products with the best ecosystem.