MindTouch's funky-fresh Deki Wiki is back, this time with 100 new features. What are they? Name it (Mashable valiantly tried): Google Analytics for stat-checking, Gabbly online chat, Yahoo Finance stock trackers, Flickr slide shows, Digg It badges. Looks like the mash-up stick hit the open source Deki Wiki group hard. The service is "free for unlimited users, unlimited pages, and without limitations" (their words), but you can buy varying degrees of support for anywhere between US$ 495 and US$ 4,495. Witness the frivolity for yourself.