Ipad for me, because of the apps
The ipad isn't better from a hardware experience, but for video production for example,or medical use there already are great apps for field use, slate applications, logging of shoots, epocrates for medical, apps for finding out the declination of the sun for field video shoots, model releases, etc. The vertical appsalreadyon the ipad make it more compelling, though i wish it supported flash, usb, etc. This is why it's not the hardware (and neither was it with the ipod), but hp needs to do a bigger job evangelizing the apps, and sticking with it until the build a credibile library. That might be the biggest challenge.