You raise several points, so I'm going to try and respond to them all:

1. Going 'thermonuclear' over product competition. This is the behaviour which best fits the definition of "malicious", namely "having or showing a desire to cause harm to someone". Without taking a personal position here, I'd point out that Apple thought that what Google did was not simply "competition".

2. Capricious, callus [sic] and combative app store submission process: It's certainly true that the App Store process is non-ideal, but I don't think this is malicious, however it feels to be on the receiving end. Never ascribe to malice that which can be sufficiently explained by incompetence. I grant you that any sufficiently advanced incompetence is indistinguishable from malice.

3. Anti-Competitive and likely-illegal publication conspiracy To whom is malice being intended here? Not the customers. Not the publishers. Amazon perhaps, but only in the sense that Apple is trying to create competition. Amazon appears to be destroying the value in the book market in order to establish a near monopoly on eBooks. Of course, it's hard to pity the publishers when they're the ones who insisted on DRM in the first place and turned it into a winner-take-all game.

4. Hoarding profits overseas. To whom are they being malicious? This appears to be pretty standard activity.

5. Refusing to pay taxes for the environment that spawned their successes. What kind of taxes are you talking about? What environment?

6. Censorship of users media I'm pretty sure I can copy whatever I like onto an iPad, iPhone or Mac without Apple removing it again, unless I missed a particularly juicy scandal (perhaps Apple censored it from my news feed). Do you mean that they limit what can be sold through their store? I think most store holders retain that right, including Amazon.