Same here, who need WiFi?
Just plug it in (better speed) and that's it!
Replacable batteries are WAY BETTER than internal.
I have both (360 and PS3) and my 360 controller (with 2AA Enelopp rechargeable batteries) last WAY LONGER than my PS3 controller...
AND I HATE THIS: My PS3 needs to stay "On" to recharge controllers... big letdown Sony...
Removable batteries FTW!