Thanks very much for providing us a taste of PE7, Steve.
BTW, PE4's manual states that the Organizer in PE4 "shows the contents of the last catalog you opened in Photoshop Elements [6 only]." The only reason I bought PSE6 was so I could import all my video clips into its organizer for tagging and then see the tagged clips in the PE4 organizer.
If I understand your preview correctly, with PE7 I will be able to perform the tagging of clips directly without needing any version of PSE installed.
1) Is that correct?
Also, I've noticed that, to delete a clip from both my PE4 catalog and my HDD, I must do it in PSE6, not PE4. (Clicking Delete in PE4 only removes the clip from the PE4 catalog not the HDD.)
2) Will PE7 require me to have PSE7 installed if I want to delete a clip not only from the PE7 catalog but also the HDD?
Lastly, I've noted that, if I wish to open PE4, I must first close PSE6.
3) Is there a reason for that?