Automatic network location in Lion

Question

I'm looking for a Lion compatible application similar to AirportLocation that will automatically change the Network Location based on my current location.

It's becoming a bigger and bigger pain to change it every day, manually. I have different settings for home and for work. I'll also be adding several new places in up coming weeks.

It's a shame that AirportLocation isn't compatible with Lion because it's exactly what I was after and more!

Edit: I've seen an application called Sidekick, but I'm preferably after a free application, bash script, whatever.