[michaelbuckbee]

My bet was going to be Atlassian. They have the clearest competitor to Campfire (Hipchat), a history of pulling off acquisitions (Bitbucket) and from 37Signals perspective could probably make a better case that they could take care / migrate their customers.

[subbu]

I doubt unless they want to kill Hipchat and use Campfire.

We will not sell either of these products to a company that is planning to shut the products down.

IMO Hipchat is a better chat tool than Campfire.

[lucaspiller]

Why kill either? They are already a big player in the market, if they have Campfire too their will dominate it.

[lmm]

Maintaining two products that overlap that much is going to look like a waste sooner or later.

[Uchikoma]

They could just have two different frontends, everything else the same.