It depends on the iPhone's capacity (8gb, 16gb, etc.), and what kinds of apps you are using, since each app takes up a different amount of space.
You can have 16 folders on a page and 12 apps in a folder and 11 pages of folders and 4 folders at the bottom so about 1,980 on the home screen pages after you fill them you can have more and have to search for them
Yes. There is a Pages app and a group of Microsoft Office Apps.
I think I just maxed out my 8 gig iPhone. It will only hold 9 pages of apps. So 144 total.
By the time I answer this question there are ~285,000 iPhone / iPod Touch apps on the iTunes App Store.
easily 16 apps per page
if all you have is apps, then 16 GB.
it has 27 apps
Apps are constantly being created, so roughly 10 apps are made everyday.
As of May 17, 2010, there are 202,064 apps for the iPhone and 6599 for the iPad. Go to appshopper.com to find current numbers
There a many good iPhone blog apps. The most common blog app would be snap guide.
You buy the iPhone app
apple create the apps on iPhone