This article is saying that most of messengers are only exposed to internal employees. When we want to communicate with customers or partners, we fall back to traditional methods like email or phone. If someone can figure out this external communication, this'll be a big market.

What is web based core? Does it run on Chrome?

Our company uses IBM sametime. One of our clients use MS Lync. I genuinely think enterprise messaging is still in very early stage.

One of my banks (HSBC) uses sametime internally.

I tend to think the enterprise messenger is a different animal. Consumers and enterprise workforce are different. The way you use workplace social network can be quite different than the way you post your silly photos on fb.

I checked out your site. The product looks very promising.

What if a good potential #1 asking for founder position?

You have to ask yourself:

1. Are you a single founder, would a 2nd founder help? 2. Do you already have a 2nd founder who is technical/business? 3. How far along are you? 4. How much salary are they willing to give up? 5. Are you a first-time founder?

I was brought on as a co-founder, even though the business had a few months head start. However I was the only dev, I was going to make the same "salary"--20k/yr, and that the company didn't really have much more than a simple proof of concept.

Employees should expect a "reasonable" percentage of market salary. Founder's should not.

The difference would be from about 5% to perhaps 15%. There should be a damn good reason to make this happen (you wanted the person as a founder at the start, but external forces kept it from happening). A bad first hire can sink your company, so be careful.

I don't it works well.