Okay, okay, JSON is pretty hot
purist fanboy in me has had me pshaw'ing at JSON. But, now that the recent JSON release from Yahoo! reminded me of its existence and I gave it a shot myself, I have to admit that it's pretty hot—if only for the cross-domain bridging capabilities and the no-fuss parsing.
Although, I do worry about running into a poisoned payload someday that raids my cookie jar.