I am not a programmer and I have never setup a server, so this is just
a guess.
(this is assuming you have your tablet on your places wifi)
Set up your tablet so it has a fixed ip address, then just use the
http commands(I believe it would 'HTTP Post') in tasker to send info
strait to it using your tablets ip address has the url. I don't know
how the tablet would receive that, though... I have never messed the
http post...I just searched the market for servers, it looks like you
could have a server running on the tablet. Without actually attempting
your idea, I don't know how you would get the info from a server app
to Tasker...
If you figure it out, you should post I how you did it. This is
something I could see being useful.
This the app I found in the market
https://market.android.com/details?id=org.swiftp
Cheers