Will the iPhone be able to upload software like a PDA?

I am a nursing student and we have many resources that can be placed onto PDA's like drug guides, labratory testing guides, and a bunch of other software that is intended to be used while in the clinical setting. If they can, the iPhone will probably be the most inclusive hand held device. I'm pretty excited for this advancement to come out. However, there isn't Cingular coverage where I currently live.
I plan on moving to San Diego when I graduate, so I won't be living in a Cingular dead zone forever.

View this post on my blog: http://travelnursesuccess.com/will-the-iphone-be-able-to-upload-software-like-a-pda