TotalFinder adds tabs, hotkeys, and other tweaks to the Mac OS X Finder
Drag&drop support between tabs. Tabs perform spring loading when hovered during drag operation. You may drag folder(s) out as tabs. Hint: drop them between tabs. TotalFinder restores windows dimensions and tabs layout after restart. TotalFinder windows may be moved by dragging window background or toolbar background like in the original Finder. You may switch Option+TAB panel switching instead of TAB switching in Preferences (issue).