Note:  Found this article at Tom Keating's blog about the rumor of Signate's demise.  Tom does bring up a good point in his article asking if the Asterisk Eco-system is growing too fast?  He mentions the pressure out there with Asterisk being a free and open source product.  What I feel any company involved with Asterisk has to make sure they are providing real value to there customers.  When you provide value through your knowledge and service you will always have a market to find customers.