This:
http://www.amazon.co.uk/Eye-Fi-Wirel...4528411&sr=1-7 might be an alternative if the tab has a wifi capability.
You can't stream it live, but you can view a clip as soon as you have finished it.
You don't say which camcorder you have, but my Panny SD700 won't stream live (like a webcam) at all. I can view completed files, either by a wired connection (or, presumably, Eye Fi) or, as I do, take the SD card out and plug it into my tablet.