With a small OBi device you were able to connect a landline phone to your Google Voice number for unlimited free calling. It was always an unofficial relationship, but a great one for consumers.
In November 2013 Google announced that they were going to cut off devices like the OBi effective 05/15/14.
That never actually happened and today OBi published the good news, they now have an official relationship with Google Voice and you will be able to continue to make unlimited free calls to Canadian and US numbers and dirt cheap calls to other numbers at the newly reduced Google Voice rates.
As part of the announcement you can also buy an OBi200 for just $29.99 shipped from Newegg.
To get that price just use code: EMCPAWW99
Limit 2 devices per Newegg account.