Or something cool AND geeky? 
It is quite different from Xbox Live! and Xbox (there are no such thing as MS Live! or XBox ;P) since MS does not manufacture TVs (to name one appliance that generates this Sony/PlayStation problem).
You connect to the SEN to meet your friends/contacts/download preferences etc. These are 'the cloud' for Sony. The game will come under the PS banner I expect because Ps is very synonymous wtih gaming. Thus in the SEN store, you'll have a movie section, music section, and games section which may or may not be called PlayStation. What they need to ensure is that a device that cannot run a game doesn't have access to it, so you can't go into your TV and buy a game expecting it to run if it can't. Having the PS differentiator would help with that. If you have a Sony TV, you won't be able to play games. If you have a PlayStationTV, you will. That's how I expect it to go anyhow. On unbranded devices like Android phones that can play PSS content, there'd be a PlayStation icon and not an SEN icon.games on TV are SEN or PSN?
But Live is available across devices. It's on phones, PCs, will be tablets and XBox. The intention is that you can buy content on Live like music and movies and play it on your Live enabled device. But of course XBox games won't work on your PC or phone (yet). So there's already this common network for MS with a discrete gaming service, only the discrete gaming service doesn't have a discrete gaming name. Isn't that just because MS picked the opposite option to Sony? They had MSN and Live! as discrete products and grouped them all under the Live name, whereas Sony had SonyNET and PSN and grouped them under the SEN name.
Wonder if they'll ditch the Playstation brand. Sony's Next Entertainment System
What about PlayStation Suite or Android devices? Does it make sense to use less recognizable brand, PlayStation, for mainstream gaming framework? Shouldn't Sony go for the Sony Entertainment Suite instead? The reason I'm asking is simple: I don't think it's that clear-cut. If your Bravia allows you to access SEN, that's cool. What if it lets you play games, social, cloud, whatever - most embedded devices have Opera browser built-in, so pretty much anything that works on Facebook, works on the TV. Sony didn't want confusion caused by the fact that Sony Bravia device connects you to the PlayStation Network. So it's SEN instead. But then you go one step further and you hit the same decision: games on TV are SEN or PSN?
Not sure about that. Just logged into PSN and was greeted with new T&Cs saying a Sony Entertainment Network account allows access to Music Unlimited, Video Unlimited, PSN, etc. So PSN is seen as a subset of the whole network. Basically you have a single unified account, but within that PSN is the gaming component.
