Air.Photo is a wireless print server that runs on PC and Mac, plus an iPhone app that lets you wireless print your photos from your phone. Not tried yet, but could be useful when Apple decide to give the iPhone a camera good enough to actually print photos from.
http://www.sudobility.com/Air.Photo.html
I'm still looking for a way to delete photos from iPhone with out having to go through them one by one… can't find anything that does this yet, not on a Windows PC anyway.