Some people don't want a tuning tool that is close to a stand alone. Also, with that it is harder to help tune a car over the internet which is why some people would rather have the current dsmlink then have something like that. So they can get free help for the entire tune.
V3 will have more timing and fuel sliders. But, I don't know if it will have load based tuning. I would like for it to since I am no novice to tuning. It would be awesome if you could choose between the sliders or load based tuning with the program. Then when you became more comfortable with tuning you could switch to the load based maps to get a better tune.
EDIT: I asked this question on the dsmlink boards:
"Sorry if I missed it with my search. Is there going to be the capability of load based tuning with V3?"
Tom's response was:
Yes.
http://www.ecmtuning.com/images/foru...tmngmaxoct.gif
The y axis is "load" (effectively related to cylinder pressure). Until we figure out what units make sense on the y axis, it's just numeric for now.
And, yes, these axis values are all going to change soon. We're going to extend the RPM axis and the load as well. This is just the stock 2G table for now.
Thomas Dorris"
Just incase you can't see the picture in that link: