While I love my Geeklets, I had a pretty hard time to set them up consistently across varying monitor setups (home, work, on the go,...). The bad news first: There is no built in mechanism (as of 01/2013) to take care of this problem. Still there are good news: With some minor tinkering, you can automagically position your Geeklets across multiple setups.
The initial step is to add your Geeklets - you can totally ignore the positioning for the moment.