I think that's why I'd have to adjust things somewhat with a new MB/MBP. I'm so comfortable with the previous trackpad/button combo that I don't have to worry about whether or not clicking the button is considered by the OS as another finger/touch, or just a 'click.'
I guess it can become intuitive after awhile, but the way I'm working already seems pretty intutive too. I'm just not sure what the advantage of the non-button button is. It did give me some less-than-precise selections when trying it out at an Apple store, due to cursor movement while clicking (since sometimes I click with a slightly sweeping motion of my finger on my existing trackpad. Plus on my now-outmoded trackpad, I can tell where the button is by feel...
Maybe on the new setup, if I just considered the lower quarter of it as the "button" it might work the same...
Oh well, I'm sure someday I'll adjust to it after replacing my machine, and it will seem like the perfect setup... and then they'll change it again...😉