Did Hayley and Jake KISS yet??

No not yet. The 1st episode of season 2 is the only one thats been on so far. :)

Yes. "In the episode Road Trip, they spend a lot of time arguing about Hayley's date, Rex, and are trapped in the panic room while they try to figure out how to defeat the Fog Monster. They have an idea to heat up all the appliances, but realise it won't be enough heat. Jake tells Hayley "If I'm gonna go, I'm glad it's with you," before they kiss. This generates enough heat to destroy the monster. After Jake thinks the KISS was just to stop the monster, Hayley says: " It was a real, well, Du know." Jake: "What?" Hayley: "A real good way to get rid of the monster" She smiles as she gets back in the car and Jake looked like they were a happy couple."