That's reasonable, but I'm guessing most large corporations have their own VPN service that links directly into the company network, right? I would imagine the

That's reasonable, but I'm guessing most large corporations have their own VPN service that links directly into the company network, right? I would imagine the expense of having a CryptoCat account for every single employee on the road quickly becomes larger than the overhead of running your own VPN server. I have some medium-sized corporate clients who have their own VPN servers at HQ in order to enable people to work from home, it would be trivial to use these for mobile devices as well.