From OW support:
Thanks for taking the time to write. We are currently putting the finishing touches on the 5.7 release and unfortunately I don't think any of your requests will make it. We're hoping to transition into some higher engineering bandwidth for OmniWeb this year, so fixes may be coming soon.
> [******* - Mon Mar 24 21:22:01 2008]:
> For the final 5.7 can we expect:
> Sorting of bookmarks in folders?
> Jumping to the last viewed tab when closing a tab?
> Reasonably functional Autofill?
> Dragging unopened tabs into a new window?
> Improved RSS?