Photostream is pretty much real-time now for getting pictures onto all your systems. Take a picture on your iPhone - it's on your Mac and Ipad. Drag it into your photostream on your Mac - it's on your iPhone and iPad. If you see a picture on the web on your iPhone/iPad, just hold-down the touch, and click "save image" - lands in your photo stream (and, once again, all your system).
It wasn't quite real-time for the first couple months, and I had a few situations in which pictures took a while to sync up - definitely was not as reliable as Dropbox - but, since late october - I haven't had a failed sync. I do it 2-3 times a day, it's how I get pictures onto my Mac when I'm doing documentation. It took them a while, but Apple finally nailed the "How do I get pictures on/off my phone/Mac/Ipad" - would have probably been done a couple years earlier if they had managed to acquire Dropbox.
It wasn't quite real-time for the first couple months, and I had a few situations in which pictures took a while to sync up - definitely was not as reliable as Dropbox - but, since late october - I haven't had a failed sync. I do it 2-3 times a day, it's how I get pictures onto my Mac when I'm doing documentation. It took them a while, but Apple finally nailed the "How do I get pictures on/off my phone/Mac/Ipad" - would have probably been done a couple years earlier if they had managed to acquire Dropbox.