There are quite a few although several of them I've never seen in person so I don't know what they look like. IMR has a video somewhere on the forum of all the tricks. Whether or not you upgrade is up to you. Have fun!
I'll give you my notes below on the tricks from 2.0. The tricks do require a lot of finger and hand gymnastics so don't give up if your pleo doesn't perform as requested. Also you will most likely have to slog through the terrible teens before he will condescend to pay proper attention. Anyway here they are.
Play dead. Each of these scensor combinations must be held for at least three seconds.
Touch top of head, back and right foreleg.
Stand up and talk
Touch back and both forelegs.
Watchdog
Touch back, left foreleg and both rear legs.
Conversation? Not sure what this one does.
Touch back and left foreleg.
Wave
Touch top of head and both back scensors from shoulder to rump.
Red object tracking.
Take red object, put in front of pleo's nose no further than four or five inches away. Takes lots of time and patience- lots of patience. Eventually provided the red is the right shade and your lighting is bright enough, pleo will see it. You can move the object slowly from side to side and pleo will follow it with his head.
Anyone, if I've made any mistakes with the hand/scensor instructions please feel free to correct me. Good luck, Sukaber!
Talon