When trying to upload photos, the thumbsnap window comes up, but the "choose a photo to upload" button is constantly greyed out. This isn't a problem on the mac, just my iPad. Problem specific to me or generic?
It's because the iPad doesn't have a file system in the same way that a Mac / PC does. Image uploading (in general, not PH) is tedious at best with an iPad. You really need an app.