Here are the rules or another card game based on speed that might be interesting regarding our Speedwolf project : http://www.pagat.com/invented/abroasta.html
As with Junglespeed or our Speedwolf, you need good reflexes to slap the decks. The main difference between our game and this one is that Abroasta does not have turns at all, everything is based on speed and nothing else.
In speedwolf, we try to integrate different kind of strategies to have fun !
Another speed based game is Double Flip: http://www.pagat.com/invented/double_flip.html