Poor Surface sales be damned: Microsoft is moving forward with its Siri-mocking advertising campaign. The company previously compared the ASUS Vivo Tab and Dell XPS 10 to Apple’s iPad. In a series of television commercials using a fake Siri voiceover, Microsoft has repeatedly mocked the iPad’s limited capabilities such as no expandable storage, no USB port and high price tag. Microsoft is back at it and this time is comparing the iPad to its Surface RT tablet. The commercial shows off the Surface’s kickstand, its USB port, keyboard cover and reduced price tag, while “Siri” tries to make excuses for the iPad. Microsoft’s latest ad can be viewed below.