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UK-based shoppers had complained their Surface orders had not arrived on Friday That is the same price as an iPad featuring half the amount of storage, albeit with less space taken up by Apple's operating system.
Mr Wong noted that other firms, including Lenovo and Asus, had detailed plans for more expensive Windows RT tablets before Microsoft's Surface announcement caught them by surprise.
Acer also told reporters that it believed Windows 8 would only boost its fourth-quarter sales by 5%-to-10% because the software had been launched so late in the year.
It is not the first time that Acer has appeared critical of Microsoft's tactics. In August Acer's chief executive told the Financial Times that the release of Surface would have "a huge negative impact for the [Windows] ecosystem and other brands".
Gartner - a tech consultancy - said the fact Windows RT with battery like Asus A42-A3 Battery , Asus A2000 Battery , Asus A42-A2 Battery , Asus A3000 Battery , Asus A6000 Battery , Asus A42-A4 Battery , Asus A4000 Battery , Asus L5800 Battery , Asus A42-L5 Battery , Asus L5000 Battery , Asus A32-UL20 Battery , Asus Eee PC 1201 Battery offered Microsoft's Office software suite, would act in its favour, but might not be enough to compensate for other "missing" software.
"With regards to RT we have also been a bit sceptical about the initial uptake because the app ecosystem is still weak compared to Apple's iOS and Google's Android," analyst Roberta Cozza told the BBC.