I didn't understand the complaint about click+drag, but then remembered that other people use trackpads differently than I do: I turn off tap to click, let my pointer finger rest on the left-click button, and my middle finger do all of the movement on the pad - with pretty high acceleration, so I rarely move out of an area of a square centimeter. That square centimeter gets me halfway across the screen, and lifting the finger and retracing the same motion gets me the other half. To right-click, I bend my ringfinger, to right-click and drag I turn my hand to a more north-south position rather than the northwest-southeast position it's normally in.
So when I'm using the trackpad to move the pointer and left-click, I'm barely moving. It just looks like I'm quickly drawing tiny circles with my middle finger. Left-click and drag is trivial and accurate.
If you use your forefinger for everything, I could see how a trackpad would be annoying.
If there was any hardware design change I would make, it would be to always have a second set of buttons at the top of the pad (which I have on the thinkpad), but to lower the distance from the bottom to the top of the trackpad to make using the top-right button easier to reach with a completely relaxed splay of the fingers. This would also have the effect of making my style of trackpad usage comfortable for both left and right handers, and the two unused buttons, along the center line of the hand (beneath and above the middle finger) can be mapped to other usages (such as center-click.) I might in that case be tempted to map my compose key to the top-center click.
The big point is that if you use a trackpad with your middle finger, using your pointer to left-click, it's an extremely relaxed position. The minor point is that with this style, trackpads are pretty gigantic, and a one-inch square track "spot" would be more than adequate, and permit a second row of buttons to lie low enough to make right-clicking just as relaxed.
That was a lot to read, I hope I'm explaining this well.
So when I'm using the trackpad to move the pointer and left-click, I'm barely moving. It just looks like I'm quickly drawing tiny circles with my middle finger. Left-click and drag is trivial and accurate.
If you use your forefinger for everything, I could see how a trackpad would be annoying.
If there was any hardware design change I would make, it would be to always have a second set of buttons at the top of the pad (which I have on the thinkpad), but to lower the distance from the bottom to the top of the trackpad to make using the top-right button easier to reach with a completely relaxed splay of the fingers. This would also have the effect of making my style of trackpad usage comfortable for both left and right handers, and the two unused buttons, along the center line of the hand (beneath and above the middle finger) can be mapped to other usages (such as center-click.) I might in that case be tempted to map my compose key to the top-center click.
The big point is that if you use a trackpad with your middle finger, using your pointer to left-click, it's an extremely relaxed position. The minor point is that with this style, trackpads are pretty gigantic, and a one-inch square track "spot" would be more than adequate, and permit a second row of buttons to lie low enough to make right-clicking just as relaxed.
That was a lot to read, I hope I'm explaining this well.