I disagree that photostream is completely useless, as long as it is flexible about what gets pushed where. I want my photos "pushed" to my Mac rather than having to think about them. I certainly don't need them duplicated on any of my other iOS devices. I just need to find a way to automate pushing them from my Mac to whatever service I wind up using as my gallery (picasa, flickr or whatever). Hopefully Apple provides a way to block pushing photos to all my iOS devices (which would fill them up). Apple has a rather comical setting in iTunes to "fill unused space". Since iOS devices are becoming primary computers, the very idea of filling unused space, whether with music or with pictures is about the dumbest idea in modern history. I need free space on my device for apps and documents not photos and music. I rarely have over a gig of music and another gig of photos on any of my iOS devices.
if you only use 'i' devices then I can see the use
take a photo on iPhone
auto uploads this to cloud
next time Mac is on it downloads to it
take a picture on regular camera
import to mac as now
mac uploads to cloud
'i' devices auto receive this
still undecided on this feature