There are no kernel updates without risks involved (anantzoid.wordpress.com)

I keep one of these with OpenWRT on it in my laptop bag for those times when I need a wired connection but only have wifi available. Its powered of a usb port and was only $30USD. Its like a little network swiss army knife.

http://www.amazon.com/s/ref=nb_sb_noss?url=search-alias%3Dap...