Elektron Overbridge is a software suite that lets you combine the power of your Elektron Analog instruments - Analog Keys, Analog Four and Analog Rytm - with that of your computer and Digital Audio Workstation.
Elektron tells us that Overbridge is now available for public beta testing. On the Elektron website you can see which features are available in the beta right now and which are scheduled for the upcoming 1.0 and 1.1 releases. If you want to join the beta, you will also find the sign up form there.
Elektron says that there is also an Overbridge Public Beta forum on Elektronauts.