The iPad itself is just too limited to be usable, in my experience. But the tablet form factor can work reasonably well for not-too-intensive activity (i.e. it

The iPad itself is just too limited to be usable, in my experience. But the tablet form factor can work reasonably well for not-too-intensive activity (i.e. it's no good if you'll be doing a lot of data/text/code entry, of course), and the mainstream Linux desktop is starting to support it quite nicely.