Team-chat is on my to-do list. Should be in the next update unless something comes up. I've been considering adding a password system so you can make private teams. Votekick might be better, but might be hard to enforce. I'll consider it.
I was just thinking today that password-protected rooms could be another solution. Easier to implement, I imagine. The only downside is you couldn't make new friends.
Another fun idea: Transporter pods to board enemy ships?
but lets say there is 1 public ship thats new and wants freinds, and 2 other freinds come, greif the ship, and they votekick the first guy? maaayyyybe guests cant votekick? There are some problems with that idea, buddy.