Insightster right now is a side-project for us here at Irrational Design. Our main focus is on The Puzzle School
At some point in the not-too-distant future we will either have to charge for Insightster or shut it down.
If we do shut it down we will give ample notice and make sure people can get their data out of the system.
As it is a distinct possibility that we will shut it down or charge for it at some point, though, we wanted to make sure everyone knew as far in advance as possible.