there's a bit of discussion of this in
this other thread
I just came back from 2 wk vacation and used iPhoto on the new iPad to create daily photo journals to send to friends and family back home. it worked quite well. I already use the iPad to backup photos from my DSLR while traveling so it was an easy addition to my routine to create the journals
I've been using MobileMe Gallery on the Mac for many years as well, so I can compare the two.
iPhoto Journals on the iPad looks like a great start as a replacement for MobileMe Gallery. I'm assuming/hoping now since Mountain Lion will have an emphasis on iCloud that Apple will introduce the Journal feature to iPhoto on the Mac once ML is released [fingers crossed]
here are some things I noticed about Journals:
- unlike Gallery, there's no way to password protect individual Journals.
- after you create a Journal, you click a button to "Tell a Friend" - this creates an email with nicely formatted button link as well as a URL to your journal. the URL is a big ugly looking thing (>120characters), unlike Gallery which uses a gallery.mac.com/your_name prefacing the URL.
- you can also add the journal to your "home page". what this does is create another link to the top level of web page containing all the journals you create. again, this gives you a big ugly URL - unlike Gallery, you can't simply point your friends to a place like gallery.mac.com/your_name to see all your stuff
- unfortunately this journal "home page" is nowhere to be found if you log into your icloud.com account in Safari. it logically _should_ be there, but it isn't. you can only view it by after getting the big ugly URL from iPhoto on the iPad.
- you can delete a Journal from the iPad, by turning off the publish to iCloud switch
- unlike Gallery, with Journals you have more flexibility in formatting the layout and size of photos that appear on the web page. you can add captions to individual photos, notes, an iCal style date, weather and map widgets etc. the resulting journal pages look quite nice. This is a HUGE improvement to Gallery, I hope this feature makes it to Mac version of iPhoto
- when viewing a Journal via web browser, clicking on an image brings up a full size version. you are able to download a copy of the image. Unlike Gallery there's no option to allow/disallow downloading the full size original.
- there are some formatting quirks when editing Journals. sometimes when moving photos around, many photos on the page jump around unpredictably to make room for the one you're moving. sometimes it seems impossible to move a photo to a spot you want to. thankfully there's multi-level undo
- once you publish a Journal, if you then edit the journal again on the iPad, those changes get pushed to your web page containing the journal. no need to manually re-publish
- there's no way (yet?) to synchronize the journals you create on the iPad back to your iPhoto library on the Mac. Likewise there seems no way to automatically sync your iPad's iPhoto events & photos back to corresponding ones in your iPhoto library on your Mac.