To connect these to your wired setup you can run a digital optical or RCA analog signal into one, which will them pump that signal wirelessly to the other using what's called a "proprietary uncompressed digital audio" format. That's nice, but better is going with a completely wireless transmission setup, which can be achieved with either an (optional) external adapter or by simply connecting to them directly using DLNA. Yes, you can pump audio straight from your smartphone, though of course it'll be far from uncompressed in that case. Unfortunately we can't deliver any impressions of how they sound, the crowded gdgt event not making for a very good listening environment. But, what we could make out over the din didn't disappoint.
The PS1 speakers are set to ship in August and, while we couldn't get anyone at Cue to clue us in on a price, we're told they'll be comparable to other high-end bookshelf speakers. So, you know, pricey... and they probably won't play that old copy of Final Fantasy VII you couldn't bear to throw out, either.