OnLive

Positive
- No downloads
- Compact and little equipment needed
- You can save and share your best moments online and show your friends
- You can play demos of games before deciding whether to purchase the game or not
- State of the art gaming in high definition without needing any high end hardware

Negative
- You can only access high end games
- You have to pay monthly on top of extra charges for games
- If you have bad broadband connection you won't be able to connect to the OnLive system
- Games bought by OnLive users are not actually owned by them so if the business was to go under they would too in terms of them not being able to play.