I'm disappointed in this move, but also just a little skeptical. I've been deeply involved in the CRM industry for 25 years and have made most of my money the last few years doing Salesforce implementations for small and medium sized businesses and non-profits. Also, Comm2A is deeply dependent upon the Salesforce nonprofit product, (which is great). We'll just have to see how this all shakes out. I'd be very surprised if they actually dumped a major customer over this.
PS: If you don't like your Salesforce (or for that matter any other packaged software application) at work, it likely has more to do with the folks doing the implementation than with the underlying software package.