Sharing Music Live

NEED
The idea of listening music at the same time through a smartphone without being in the same place. Like doing FaceTime but instead with music.

DESCRIPTION
It will probably be an app on your phone that can synchronize what everyone is listening in a specific channel. It is like becoming your own radio station.

POTENTIAL
"Spotify launched just over a year ago in the United States (July 14, 2011) and during that time has garnered more than three million U.S. users, with roughly 20% of them paying subscribers." by Hisham Dahud 

TV Streaming Device

[UPDATE: Chromecast was release days after this post. Probably this is exactly what I meant with my post]

NEED
I keep wondering when are we getting a small device that can help me project things from my phone to the TV. It could get connected to some input plug in my TV. Probably the HDMI or even the VGA. I would love to be able to stream videos or even movies from my laptop too. I know I have AppleTV and other but I want something more simple that I can take on my trips.

DESCRIPTION
Small device that hopefully does not need any electrical connection (i.e. it has a small battery included like the remote control of the AppleTV) and that serves as a bridge between computers/laptops/phones and TVs.

POTENTIAL
Apple TV sales surpass 13 million, 'about half' sold this year