How about more users in voice chat... I dont understand why there even is a limit since it's not using skype's servers. It's all the clients bandwidth so there shouldnt be a limit unless the client sets one.. Let me know when this will be changed.. hopefully on the next version release.

This has been brought up many times already. I'm not sure if you'll see it for awhile, but it's probably on the list of features to add.

It is restricted to 5 people (except you) because your computer wouldn't handle a bigger number than that. It requires a lot of bandwidth and CPU power!
You however have the option to talk to make a bigger conference.
To do this you and one of your buddies has to make a 4 person conference each. Then one of you has to invite the other.
This way you have 10 people in the conference and the CPU load and bandwidth are distributed to the 2 hosing machines