[apple007]

This is probably a ridiculously newbie question for someone who has never owned or used a non-Apple computer (dating to the early 1980s), but anyway, I've never owned a digital camera and, thus, I've never been a big iPhoto user. (I usually just use Preview to view pictures.) I do, however, have a lot of random photos on my PowerBook -- mostly in .jpg form -- that I'd like to be able to view on my iPhone. (Not porn; get your minds out of the gutter.)

I assume the "Photos" option on the iPhone (as seen in today's ads) is powered by iPhoto (?) much like music is powered by iTunes. I've always thought of iPhoto as an app for use with digital cameras, and not as a repository for saved photos off the 'net, etc., since Preview seems like a faster/lighter viewing option. Should I be importing all saved photos into iPhoto as standard practice instead of just saving to folders and opening them with Preview? Is that how most people use iPhoto, or am I right that it's mostly for user-taken digital photos? Thanks.