A front facing camera would probably be more useful than a back facing one on a tablet.

Neither is especially useful in my experience. The value proposition is pretty much entirely limited to videochat, which is probably why both cameras on the iPad 2 suck so much for still photography. However, videochat still isn't all that common.

I never used videochat, until I had a baby. Now being able to chat with the tablet would be great.

Apparently Skype is supposed to work with my Galaxy Tab since yesterday, can't wait to try it out.

Giving a camera-free Kindle to someone from my family for Christmass would be kind of pointless, because then we wouldn't be able to chat...

Meh. People said the same thing about the original iPad and it didn't seem to make much difference.