I will miss the MobileMe Gallery feature if that isn't migrated. I'm still hoping these two features are part of the 5 GIGs we are being offered in some form but as others have said the Gallery may have been dumped because of FaceBook. That however, is hardly a replacement for an Aperture user that uses the Gallery for professional portfolios or client previewing.
That indeed is a crying shame. And Facebook is no replacement.
I love how easy it is to upload your photo's from Aperture. Versions. Masters. With or without captions, meta-data - the lot. Apple really got this right in Aperture. But upload to Facebook? The moment you upload a photo to Facebook they become the owner of that photo. One of the (many) reasons I dislike Facebook.
Here's hoping Apple will publish info on the Gallery/iDisk issue.