Bluetooth mesh networking? [closed]

Question

I had an Idea and I was wondering if it was possible. I've googled it and can't seem to find any existing solutions. I was thinking of having a Bluetooth mesh network. The layout I was hoping to achieve is to have one central station (PC with bluetooth dongle) and then a bunch of bluetooth modules (preferably these) that would all form a mesh network with the modules around them. Not all of them would be in range of the "central station" but would need to communicate with it through the other nodes. The bluetooth modules would be hooked up to ATtiny85 chips if it makes any difference. If you have any questions just ask.

1. Is this possible?
2. Is it possible with the above bluetooth module?
3. Would they all have to be set up individually or could there be some sort of neighbor discovery?
4. Would there be security risks?
5. What would the limitations on the size of the network be?
6. Where should I start?

Answer 1

CSR has delivered a BLE mesh network solution

http://www.csr.com/news/pr/2014/csr-mesh

Answer 2

Not sure if you have found a reasonable solution yet, I am new to the BLE and was also thinking along the same lines of having a BLE mesh that can permit transmitting of signal up to a few miles or so. This way, sensors can be placed in remote rural areas and utilizing multiple hops of sensors, the data can be transmitted to the central controlling station. However, as of yet, I haven't seen a dual mode sensor that can assume both roles as needed.

The other approach can be to make use of TCP/IP bridge. This way, the device, which can be an iPhone or Android, listens to the advertised data, creates an IP packet and send it to the remote server. Obviously, for this to work you need to have cellular data network available. But granting ubiquitous data network or Wi-Fi coverage this solution sounds more promising to me.

NOTE: Here http://www.bluetooth.com/Pages/low-energy-tech-info.aspx they talk about star topology though, below is the excerpt:

Topology – Bluetooth low energy technology uses a 32 bit access address on every packet for each slave, allowing billions of devices to be connected. The technology is optimized for one-to-one connections while allowing one-to-many connections using a star topology. With the use of quick connections and disconnections, data can move in a mesh-like topology without the complexities of maintaining a mesh network.