Someone who can turn over design of both hardware and software to a single team with a clear vision and give that team the authority to make any and all of the tough decisions required.

So far I haven't seen this from design-by-committee Google or the-enterprise-doesn't-need-that RIM. WebOS seemed like the closest thing, but it was buggy and hampered by slow and buggy hardware.

Apple's competitors are right to imitate it, but they imitate the end result rather than the process that led to that result, and so they end up with a product lacking a clear vision and goal that can't compete.

That and they always aim at where Apple is now, not where they will be in a year.

(Disclaimer: this comment written on an iPad.)