I got a few guys hooked up with the 450-X.  It's a decent sounding wireless, especially considering it's a Blue Tooth connection.  They were comparable to say something like the HD-25 in quality, but with a difference character.  I did find occasional distortion and micro-details were not the forte, but they were decent sounding. 

They are super useful with lots of features.  They are the bomb on conference calls with you cell phone.  They can be used wired, but I never tried them. 

I'd have no use for them becaue I'd always want to grab my custom IEMs, but I could see the attraction of a wireless for extensive traveling and these things checked the boxes.  SQ might be an issue for hard core listeners who are going to be distracted by the good, but not great sound quality. 

So, if they can get a blue tooth portable sounding this good, yeah, eventually the industry should be able to do wireless right in the future.

What I would like to do is hook up a closed wireless to the TV so you can do dishes/vacuuming/gaming and not have the wire so you can roam and keep up with news/sports/Jodi Arias case, etc.

I use the RS220 for all of this but they are open, of course.

1 drop of water *splash* zzzzztttzztzz

Definitely splashed them while doing dishes and they're still ticking. All of my gear gets "extra loved" if it's used around the house.