The iPhone is $100. Wintel was able to beat Macintosh due to pricing, not due to quality. Windows was the next best option for people who didn't want to shell out $$$$.

iPhone is the nobrainer choice for anyone with a clue, unless they are specifically looking for something open source. That's maybe .5% of the market.

Android's market is as an alternative to the iPhone on carriers that don't have the iPhone- a market that's being shut down abroad as Apple expands beyond their launch partners.

Edit: it helps if I use the right words :) Don't post on HN before coffee!