I have a wifi capable HMI. I want to connect it through BLE to a mobile device. It seems to me that a wifi to BLE adaptor could manage this ?? Actually just today, I found a module called "Bear DUO" on Kickstarter which is currently going through funding. It claims to be able to handle this.... or close to it.
I would prefer not to create a wifi LAN in my particular hardware application. Hence the need for BLE.