My wife and her clients find iphone more than adequate for business... actually, it surpasses Android in Australia for business applications. Most major institutions, Government, etc, here, all make for iPhone, not Android.
People confuse this though IMHO... Android is an OS only, that is then put on many manufacturers handsets, thus a normal dominance should prevail for OS... however; iPhone is a singular product with OS, in that comparison, humiliates Android as an OS that is loaded across multiple phone systems when you pull the stats backwards for accurate comparison. iPhone is consistently growing, as is Android, again though, OS only vs. Phone + OS (singular product).
I read the above linked news article, dated 2010, and obviously Steve Wazniak got it slightly wrong, with Apples major shift in share value due to its doubling of sales margins because of the iPhone + iPad + iMac boom. His comparison re PC vs. Mac is also dated, as PC market share has dropped, Apple market share increased.
The man got it pretty wrong so it seems from all the data as at 2011.