Ouch, there's a market for this. It small but I'm sure it exist. No need to discourage experimentation in the market place.
It is an excelent concept!. Hope it is 400 U$$ or less!.
I think that a second gen Transformer with a Quad core seems like a better value.
well as we now know: theres a 2nd gen Transformer :D but the Padfones CPU beats the Tegra 3 althought it's "just" a Dual-Core