Apple are on the right track for this type of box with the latest revision of the mac mini, having a HDMI port and a nice small form factor. If you could get a decent graphics card in there, you've got yourself a nice box.

The biggest problem here is, people really don't want another thing to plug into their TV, and in Steve's D8 interview he mentions that specifically about where the apple TV and soon to be Google TV product just don't have a way to make money. Perhaps gaming is the answer?

A better way of doing this would be utilizing a bash function.

in your .bashrc put the following:

_complete_ssh_hosts ()
{
COMPREPLY=()
cur="${COMP_WORDS[COMP_CWORD]}"
comp_ssh_hosts=`cat ~/.ssh/known_hosts | \
cut -f 1 -d ' ' | \
sed -e s/,.*//g | \
grep -v ^# | \
uniq | \
grep -v "\[" ;
cat ~/.ssh/config | \
grep "^Host " | \
awk '{print $2}'
`
COMPREPLY=( $(compgen -W "${comp_ssh_hosts}" -- $cur))
                return 0
}
complete -F _complete_ssh_hosts ssh
complete -F _complete_ssh_hosts ping

This will allow you to ssh tab complete bashed on hosts you have already connected to and accepted their hostkeys. Also works for ping

-Brad