In the trade, the Iconia Tab 10 will not come until the 4th quarter, until then much can change. After all, the price is already fixed: At 300 euros it should go.
The Iconia One 10, on the other hand, is more or less immediately available and will be available in June. The starting price is 170 euros. But you have to do with a 720p display. The 1080p version starts at 200 euros. Thanks to two microUSB ports, not only a power cable, but also useful peripherals can be used simultaneously.