I think if they designed the iPhone to be a 'serious work machine' they'd have included these things from the start.
I don't know about you but I type well on the iPhone and I'm someone with big, thick fingers. People should stop complaining about the keyboard. Most of my posts on this forum (all on the past two pages) have been done on an iPhone. Try using an app like the thumb to increase your speed and accuracy. In fact the only pain in the butt has been the auto correct function.
The only features it's now missing is the ability to edit word documents and search emails. Quickbooks has already announced that it will be adding this feature in an update this year. I expect with this announcement on Tuesday that there will be system-wide spotlight that the developers can take advantage of.
Made on an iPhone