We've been using these tools for a while now for our weekly game. There are a couple of us that play remotely and we use Google Hangout to do so (although the last couple of sessions we all played remotely using Hangouts and the tool). It has been working quite well and I thought I would make it available to the community.
It consists of Destiny tracker, a roller (originally coded by our GM and posted in this forum a couple months ago) with the results communicated to everyone in the Hangout including the roll results that appear as an overlay to the video stream.
You can give it a try here:
This is what it looks like. It is displayed as a side-panel next to the video.