To be honest, I really think that having an in game voice chat, would improve the gaming experience ALLOT.
RIOT always say that they want the game to be as team driven as they can possibly have it, and one problem with teamwork (especially in soloque games), is the fact that none of them are able to communicate verbally, and cannot type fast enough to communicate effectively.
Therefore, what better a way to improve the availability of teamwork options, than to add an in-game voice chat option!
Imagine how much easier it would be to communicate with each other in games.
Of course, there would need to be certain options added to this feature, to cut out the trolls, and to make it convenient enough to use.
* Make it so you can turn speak mode off and on, so you can choose to listen to incoming voices.
* Add a filter option, for people to ignore speech from certain players (when there are trolls).
* Volume options, to change the volume level of your outgoing, and incoming speech.
I really don't see why there aren't more votes on this... this would make a HUGE difference to LOL!