The infopath team blog shows the new features of Infopath 2010.
I haven’t installed it yet, but after reading this post, i’m planning installing and testing Infopath as soon as possible.
My favorite new features:
- Make a form with a list as base
- Person picker is default control
- Custom validation
- More button control (design)
But , here is the article , read it and make up for yourself what your favorite new feature is