MAFT lets you use a GM MAF in blow through mode which is in the IC pipe instead of the intake.
MAFT Pro has a timing monitor and will soon hopefully have timing control. you can convert to MAP so you get rid of the AFM. you can get electronic boost control, and allows you to tune like an SAFC only better and more accurate. I will be going with the pro soon.
edit: sorry not sure how much the old MAFT is but if you want all the sensors and boost control and what not the MAFT Pro will run you around 620 is what i priced it out to be.