Request: New Feature: Online Lobby/Multiplayer

[QT Luna]

No, I don't want something unealistic as singing duets online or real time voice and gamedata sync.
But I'd love to be able to invite people to a lobby with chat/voice-chat (maybe realized with a third party application), the lobby owner can then select a song and either start it for all players or,
if that's not possible, give players a time limit (song length + 1 minute) to complete the song.
Scores are then automatically uploaded to the lobby, allowing for comparison.

An even more simplistic version would be a lobby, which tracks your recently submitted scores (only if you are a member or that lobby; information includes difficulty/use of line bonus (maybe)/score/time (UTC) of completion; scores are removed from the lobby after 1hr).
If I'm not mistaken, this should be relatively easy to create. Score uploading is already a feature, and one only needs a chat, maybe an embedded IRC with some bots, to process the data and allow for human input and machine output.