IronSpeed is not really a product "for" DNN.  There is no inherent link or integration in the usual sense of adding a module to a site.

Check this thread:   http://sjc.ironspeed.com/tool/post/ironspeed/vpost?id=870047

  ...and this one:   http://sjc.ironspeed.com/tool/post/ironspeed/vpost?id=2032691

It appears that, data-wise, the most integration you can hope for out-of-the-box is to allow IronSpeed access to your DNN database (and maybe not even that without some extra help) so you can view/manipulate DNN data using IronSpeed's provided IDE.  The IronSpeed IDE must be run in its own webpage or via an Iframe (again -- no real "integration" with DNN).

There's nothing to stop you from playing with IronSpeed and trying things out for yourself, however.  As the threads above suggest, you can style an IFrame to make an IronSpeed-generated page appear to be a DNN module. 

You can download and try a free version (limited function) here:  http://www.ironspeed.com/products/DownloadNow.aspx