I've seen some improvements from the critics Dave made on his video until now, though there might be more that I don't know of. These improvements are:
+ Programmer to go
+ Brighter LEDs
In my opinion, what PK3 is still missing from PK2 is:
- No PIC auto-detection
- No Target voltage auto-detection
- A reliable external software suite (the PK3 beta is still not handy)
I have a PK3 and a PK2, so I'm not missing the PK2 features. I bought the PK3 because I have some just-released PICs that the PK2 did not support and because I wanted to debug code on PIC24 and PIC32.