ViewSonic announced their dual-booting Viewpad 10Pro tablet back towards the end of May, and coming a bit more recently — it looks like the device has inched another step closer to a US release. Yup, the FCC filing. Of course, the FCC filing (just like the original announcement) does not offer anything in terms of a release date or timeframe. That aside though, the FCC filing did confirm that the ViewPad 10Pro was arriving with support for the AT&T bands and that it also has Wi-Fi. And while the AT&T bit was good to see, the Wi-Fi comes as expected at this point. Otherwise, the ViewPad 10Pro is powered by a 1.5GHz Oak Trail processor and sporting features to include a 10 inch display, 32GB internal storage, 3500 mAh battery and 1080p video playback. And lastly, the 10Pro tablet comes running Android 2.2 Froyo and Windows 7 Pro.