Also getting cannibalized: iPod touches, eReaders, desktop PCs and handheld videogames There’s an interesting chart in a report to clients issued early Thursday morning by Morgan Stanley’s Katy Huberty. The subject of her report is last week’s acquisition of Palm (PALM) by Hewlett Packard (HPQ). In Huberty’s bull-case scenario, HP builds a tablet computer around Palm’s WebOS that not only competes