It is a pretty basic business requirement to be able to print when connected to a network. It is also pretty basic requirement to be able to print from within a business-related application like Safari, Mail or Pages.
If these application do not come with a printing function then that is a major omission for the iPad. The problem I have with iPhone apps that print is that they are substitutes for the main app (that is, I need to close the business app, open and view the document in the printing app and then send it to print). There seems to be no way around this with the limitations on apps.
As pointed out by others, at least this is a software issue that can be fixed through a software update. In the meantime try sending Feedback to Apple requesting a printing function in iPad Safari, iWork, Mail etc.
http://www.apple.com/feedback/ipad.html