A listing on Amazon.de for "EA SPORTS Grand Slam Tennis + Wii Motion Plus" bears out CubeRevolution's claim. It appears that Nintendo really is allowing EA to bundle its first-party accessory with a third-party game in Europe this July. Amazon even took a few Euros off the price!
While it's great news that people might be able to buy a MotionPlus in July, and with more bundle options, we can't help but entertain the theory that this option frees Nintendo up to delay Wii Sports Resort past the summer.
Nintendo Wii console