PowerTools code has worked for me as well on most devices, though sometimes not super clean. I agree with Dimitar that it needs perhaps per-device tweaks to get it more fluent.
Also tested MooTouch a few times and wanted to compare but didn't have time yet to sit down for it. Haven't touched hammer.js yet.
We have a Sony Tap running Windows 8 at the office, and the swipe works with PowerTools as well, though sometimes it does feel a bit shitty.
Why can't there just be 1 100% perfect solution for all devices and browsers huh? :)