I'm eagerly awaiting Zen to enable tab groups/folders. I've been watching feat:9355, but its gotten bogged down in a debate about the whether tab folders in the tab bar should be the same as bookmarks, ala Arc. I personally did not like that Arc considered tabs and bookmarks to be the same because it made management and syncing a pita. Having to use a third script to export your bookmarks is not a good look.
I haven't used tab groups, is it like the indenting done in tree style tabs? I find workspaces and vertical tabs in Zen sufficient for my needs in organizing tabs, but I'm a complete amateur when it comes to the fine art of loading extreme numbers of multiple tabs from what I've seen of others.
