In this case, the asterisk is part of the trademark.
I disagree. It makes a good point. Your comment, however....
The service is now available at alternate domains jotform.net and jotformpro.com, but changing URLs is a serious inconvenience to some. Many are paid corporate clients. Among other things, iPad and iPhone apps that embed forms will have to be re-approved by Apple.
Link to Original Source
The authors estimate that it would be feasible to hide about 20 MB of data on a typical 160 GB HDD.
Wow, isn't that useful.