I haven't used Mac Touchpads much yet, but every time I do use one the acceleration feels extremely weird.
On my laptop the touchpad does pretty much behave how I expect it to behave.
Also, a Netbook I bought 2008 or so had two-finger scroll. True, many backwards notebook manufacturers were behind the times but most just have been using the standard synaptics hardware I think. The windows drivers have the scroll area preconfigured by default but then the scrolling behaviour with the synaptics tool is pretty bad no matter how you configure it.
On linux synaptics touchpads are just fine (for me).