It looks great - in theory - but for some reason the performance seems to be dismal. I put together a site using an older version of jqmobile about a year ago and was impressed how smooth and quick the widgets worked, even on a 1G iPad.
I just went through the demo site on my iPad 3 and it just seems terrible - slow, improper rendering on a bunch of elements, stuttering transitions, etc.
Is anyone else finding this? Perhaps something is amiss on my iPad, but my impression is not great so far...