The issues that Apple is currently working on include Wi-Fi, USB charging issues, and some users have reported that the device fails to reboot after being closed down.
Hundreds of US buyers have posted comments on Apple's website saying they cannot get a Wi-Fi signal and that they are having problems re-charging the battery and uploading applications.
Apple executives are concerned that a rush to deliver units from manufacturers in Asia to meet the US deadline may have resulted in quality issues with several units. Analysts say this could cost Apple millions of dollars.
Last night Apple added a help page to their website in an effort to reduce inbound calls to their call centres that are believed to have been "swamped" with irate callers.
Many buyers of Apple's iPad may be wishing they had stayed at home and saved their money judging by comments on several forums.
An Apple store source said "Issues with the US iPad's have been discussed at Apple Australia and there are concerns. I cannot comment any further". When asked whether the Australian launch could be delayed they said "Could be but I have no knowledge of management's plans at this stage".
The launch is believed to have been scheduled for April 24th in Australia.
One U.S. buyer wrote: 'Add me to the list with problems! I'm very disappointed that there's no solution either.'
Another said: 'My Wi-Fi went down after working great for a few hours. My download speeds started to crawl, I couldn't even surf the web.'
Among the problems emerging are claims that the Wi Fi is not working properly on the device with several owners claiming that the iPad is failing in areas where their iPhone and other Wi-Fi enabled devices are working properly.
