The subject says almost all.  I've just added jornada720 touchpanel
driver code to NetBSD-current.

To try, do the following.
1. Make sure "wsmouse" is in your kernel config file.
2. Build&install the kernel.
3. Do "./MAKEDEV wsmouse0" in /dev.

The only application I've tested is graphics/mgl in pkgsrc.

Although I don't have time to try X, it is likely that X works with
little modifications, because hpcarm is mostly same as hpcmips in this
regard.
To build X, you'll need to change xsrc/xc/config/cf/Imake.cf and
xsrc/xc/config/cf/NetBSD.cf at least.

--
IWAMOTO Toshihiro