IPad few days after launch, some users have encountered technical difficulties with it. They "complain" on Apple's support forum, many people even take pay machine.

Weak Wi-Fi
Since the end of April 2010, the new 3G model was launched iPad so at this time, employers must rely iPad Wi-Fi. Without the Internet, this MTB is basically useless. So, when users encounter problems with Wi-Fi signals, it certainly is a big problem.
You may be thinking, quick software update can fix the problem, but this case is not so. "Culprit" here is Wi-Fi antenna, located behind the Apple logo on the back of the iPad. This may sound like a hardware problem. To improve reception, Apple will be able to "dig" iPad and replacement antenna, so if the problem persists you will need to recover a series iPad.

Faulty USB connection
Others have difficulty charging their iPad via USB. Apple said, the quickest way to use the charger is charging iPad USB Power Adapter 10W comes MTB. iPad will be charged, although more slowly, when connected to your computer's USB port or Power Adapter charger for the iPhone. If iPad connection with the computer via the USB standard, iPad will charge it in "sleep" and your computer are switched on. Time synchronization is relatively slow. Some users say they take 30 minutes to sync the iPad. Many others said it took four hours or more.